diff --git a/README.md b/README.md
index 45a9569..cc20116 100644
--- a/README.md
+++ b/README.md
@@ -156,9 +156,9 @@ it; in the document pane it is that document. In the browse pane:
 | `m` / `p` | pick nodes up — `m` again puts one back, `M` takes the whole folder — then drop them all into the folder you walk to |
 | `za` | fold a document's own files open under it in the list, or away again |
 | `Ctrl`/`Shift`-click | pick a row up / every row from the cursor to it; drag picked-up rows onto a folder, a crumb or a space |
-| `S` | the plan screen — the board, the agenda and the calendar, in place of the documents and the list — or back to the documents as they were left |
-| `b` | the board of this space, on the plan screen; a digit there shows another space's |
-| `t` | the agenda: what is late, due this week, or in hand, on every board, on the plan screen |
+| `S` | the plan screen with every view on it — the board, the agenda and the calendar, in place of the documents and the list — or back to the documents as they were left |
+| `b` | the board of this space, alone on the plan screen or beside what is on it; a digit there shows another space's |
+| `t` | the agenda: what is late, due this week, or in hand, on every board, alone on the plan screen or beside what is on it |
 | `T` | today's diary entry, started if there is none |
 | `C` | the diary by month (`:cal`) — see [The diary](#the-diary) |
 | `[d` / `]d` | the diary entry before / after the one open, by date |
@@ -291,8 +291,9 @@ start as `sftp_host_key` in the data directory.
 ## Boards
 
 `b`, the board door on the rail, or `:board` shows the board of the space
-being browsed on the plan screen, beside the agenda and the calendar, and `q`
-or `Esc` goes back to the documents. Every space has one except the
+being browsed on the plan screen — alone, or beside the views already there —
+and `q` or `Esc` closes it again; closing the last view goes back to the
+documents. Every space has one except the
 diary — a journal has no backlog — and `:set board` / `:set noboard` changes
 that for the space you are in (the dimmed board door on the rail does the
 same). A new board starts with `backlog`, `doing` and `done`, and the columns mean
diff --git a/docs/wiki/Boards-and-Agenda.md b/docs/wiki/Boards-and-Agenda.md
index f2140de..90c67af 100644
--- a/docs/wiki/Boards-and-Agenda.md
+++ b/docs/wiki/Boards-and-Agenda.md
@@ -4,22 +4,25 @@
 
 The board, the agenda, the [calendar](Diary.md#the-calendar) and the back of
 a card are views, and they have a screen of their own: the plan. `S` (or
-`:plan`) goes there — the board on the left, the agenda over the calendar on
-the right, and no list — and back to the documents, which wait behind it as
-they were left. The views are tiles like the documents', walked the same way.
+`:plan`) goes there with all three on it — the board on the left, the agenda
+over the calendar on the right, and no list — and back to the documents, which
+wait behind it as they were left. `b`, `t` and `C` go there with their own view
+alone, and on the plan they add it beside what is there. The views are tiles
+like the documents', walked the same way, and `q` closes one as it closes a
+document; closing the last goes back to the documents.
 
 ![The board, the agenda and the calendar](../images/board.png)
 
 | key | what it does |
 | --- | --- |
-| `S` | to the plan screen, or back to the documents |
-| `b`, `t`, `C` | to the board, the agenda or the calendar, on the plan screen |
+| `S` | to the plan screen with every view on it, or back to the documents |
+| `b`, `t`, `C` | the board, the agenda or the calendar: alone on the plan screen, or beside what is on it |
 | `gt` / `gT` | the next / previous tile |
 | `Ctrl-h` / `Ctrl-j` / `Ctrl-k` / `Ctrl-l` | the tile that way |
 | `l` past the last list, `h` in the agenda, `j` past its end | on into the tile beside |
 | `f` | the focused tile fills the screen; again or `Esc` to leave |
 | `1` … `9` | switch space; the plan stays, and the board shows that space's |
-| `q`, `Esc` | from a card's back to the board; from the board, the agenda or the calendar back to the documents |
+| `q`, `Esc` | close the focused view — a card's back goes back to the board; the last view back to the documents |
 
 The keys go to the tile with focus, which wears the light border and its key
 lit in its head; the other views keep their cursors, dimmed. What is opened
@@ -28,14 +31,14 @@ is a document, so it opens on the documents' screen, beside what is there, and
 `S` comes back to the plan. Each view is read again whenever it is gone to.
 
 The plan is the same in every space, the way the desktop's special workspace
-stays up: a digit on the board shows that space's board, with the agenda still
-beside it. Each space keeps its own documents behind it, and they are there
+stays up: a digit on the board shows that space's board, with whatever was
+beside it still there. Each space keeps its own documents behind it, and they are there
 again on going back.
 
 ## The board
 
 Every space except the diary has a board. `b`, the board button on the rail, or
-`:board` shows it on the plan screen, and `q` or `Esc` goes back to the documents.
+`:board` shows it on the plan screen, and `q` or `Esc` closes it again.
 It is the board of the space being browsed, or, in a space without one such as
 the diary, the last board shown. The head of the board names every space that
 has one, with the digit that goes there.
diff --git a/docs/wiki/Commands.md b/docs/wiki/Commands.md
index 0ac34b7..6d09d4f 100644
--- a/docs/wiki/Commands.md
+++ b/docs/wiki/Commands.md
@@ -43,13 +43,13 @@ arguments and `↑` / `↓` recall earlier lines.
 | `za` | a document's own files, folded open under it in the list — again folds them away; p drops marked files in there |
 | `M` | pick up the whole folder — again puts it all back |
 | `Ctrl / Shift-click` | pick a row up · every row up to it — drag them onto a folder |
-| `S` | the plan screen: the board, the agenda and the calendar, in place of the documents and the list — S again goes back to the documents as they were |
-| `t` | agenda — late, due this week, in hand, on every board — on the plan screen |
+| `S` | the plan screen with every view on it: the board, the agenda and the calendar, in place of the documents and the list — S again goes back to the documents as they were |
+| `t` | agenda — late, due this week, in hand, on every board — on the plan screen, alone or beside what is there |
 | `T` | today's diary entry, started if there is none — from templates/day when the diary has one |
-| `C` | the diary by month, on the plan screen: h/l a day, j/k a week, H/L a month, . today, Enter opens or starts the day among the documents |
+| `C` | the diary by month, on the plan screen, alone or beside what is there: h/l a day, j/k a week, H/L a month, . today, Enter opens or starts the day among the documents |
 | `[d / ]d` | the diary entry before / after the one open, by date |
 | `Ctrl-P` | go to anything by its name, in every space — words before the last narrow the path, as in proj/ingest; Tab or Ctrl-N/P walk, Enter goes |
-| `b` | the board, on the plan screen: this space's, or the last one shown — 1 … 9 there shows another's |
+| `b` | the board, on the plan screen, alone or beside what is there: this space's, or the last one shown — 1 … 9 there shows another's |
 | `c` | capture a card into this space's inbox, without leaving here — reading a document, a card about it; Tab on the line makes it a note, or a line in today's entry |
 | `Esc · q` | close the document, and its tile when there are several — Esc first puts down what m picked up, and in the list lets go of a search |
 | `/` | full-text search, inside the current space and its text files — Tab takes it to every space, Ctrl-N/P walk the results, Enter opens one, Esc gives up |
@@ -63,7 +63,7 @@ arguments and `↑` / `↓` recall earlier lines.
 | `Ctrl-S` | save, from anywhere |
 | `?` | this screen — the keys to start with, then on a second ? every key and command; h/l a column, / filters it down |
 | `,` | the settings sheet: vim and the clipboard, the vault, the backup, signed-in browsers, ssh keys, capture tokens |
-| `q · Esc` | on the plan screen: from a card's back to the board, from the board, the agenda or the calendar back to the documents |
+| `q · Esc` | on the plan screen: the view goes, and the plan stays while anything is left on it — a card's back goes back to the board, the last view back to the documents |
 
 ### On a board
 
@@ -154,8 +154,8 @@ whole workspace. A command that does a second thing takes a word for it:
 
 | command | what it does |
 | --- | --- |
-| `:board` | this space's board, on the plan screen — the last one shown when this space has none |
-| `:plan, :special` | the plan screen: the board, the agenda and the calendar, in place of the documents — S goes there and back again; 1 … 9 on the board picks the board |
+| `:board` | this space's board, on the plan screen, alone or beside what is there — the last one shown when this space has none |
+| `:plan, :special` | the plan screen with every view on it: the board, the agenda and the calendar, in place of the documents — S goes there and back again; 1 … 9 on the board picks the board |
 | `:card, :c [title]` | add a card — reading a document, one about it, titled after it unless named, and gf on it comes back; on the board to the list under the cursor, elsewhere to this space's inbox |
 | `:due <when\|->` | due date of the card in focus — on the board, its back, in the agenda, or the open document's: today, tm, fri, +3d, +2w, 10-31, 2026-10-31 — - clears |
 | `:repeat <rule\|->` | once the card is done, a copy comes back in the inbox: daily, weekly, monthly, yearly, +3d, +2w, +6m — - stops it |
@@ -196,7 +196,7 @@ whole workspace. A command that does a second thing takes a word for it:
 
 | command | what it does |
 | --- | --- |
-| `:close, :clo` | close the focused tile — q while reading; on the plan screen, back to the documents; asks when its draft could not be written |
+| `:close, :clo` | close the focused tile — q while reading; on the plan screen the view, and the last one back to the documents; asks when its draft could not be written |
 | `:only, :on` | close every tile but the focused one |
 | `:ls, :buffers, :files` | list the open tiles, % on the focused one |
 | `:buffer, :b <n\|name>` | focus a tile by its number in :ls, or by the start of its name |
diff --git a/docs/wiki/Getting-Started.md b/docs/wiki/Getting-Started.md
index 8fd223f..8c1f323 100644
--- a/docs/wiki/Getting-Started.md
+++ b/docs/wiki/Getting-Started.md
@@ -72,7 +72,7 @@ The rail of buttons on the right does the same as the keys, for a mouse.
    `h` comes back up.
 6. Press `c`, type `try the board`, and press `Enter`. That is a card in the
    inbox of this space's board. Press `b` to see the board on the plan screen,
-   beside the agenda and the calendar, and `Esc` to go back to the documents.
+   `t` to put the agenda beside it, and `Esc` twice to go back to the documents.
    `S` goes to the plan and back; `Ctrl-h`/`j`/`k`/`l` walk between the tiles.
 7. Press `T`. That is today's diary entry, started for you.
 8. Press `?` for the list of every key and command. `h` / `l` walk its columns, `/` narrows it down, and `Esc` closes it.
diff --git a/docs/wiki/Guide.md b/docs/wiki/Guide.md
index 6573a72..73d46b9 100644
--- a/docs/wiki/Guide.md
+++ b/docs/wiki/Guide.md
@@ -25,7 +25,9 @@ beside the documents, or belongs to the one document it was put into.
 They are shown on two screens. The **documents** screen has the list on the
 left and the documents open in tiles beside it. The **plan** screen has the
 board, the agenda and the calendar, and a card turned over. `S` goes from one to
-the other, and each keeps what was on it. The scratchpad comes down over either.
+the other, with every view on the plan, and the documents keep what was on them.
+`b`, `t` and `C` open the plan on their own view alone, or add it beside what is
+there; `q` closes one view at a time. The scratchpad comes down over either.
 
 ## Morning: what needs you
 
diff --git a/web/src/lib/actions.ts b/web/src/lib/actions.ts
index a8541fd..f0668ce 100644
--- a/web/src/lib/actions.ts
+++ b/web/src/lib/actions.ts
@@ -565,7 +565,7 @@ export const actions: { [C in Context]: Record<ActionOf<C>, Run> } = {
     calendar: () => void runCommand('cal'),
     // `S`, as the desktop's special workspace is bound: the plan screen —
     // the board, the agenda and the calendar — and back to the documents.
-    // `b`, `t` and `C` go there too, to their own view.
+    // `b`, `t` and `C` go there with their own view alone, or add it beside.
     plan: () => void runCommand('plan'),
     line: () => line(':'),
     help: () => void runCommand('help'),
diff --git a/web/src/lib/commands.ts b/web/src/lib/commands.ts
index 6eb7441..110e661 100644
--- a/web/src/lib/commands.ts
+++ b/web/src/lib/commands.ts
@@ -605,14 +605,14 @@ export const commands: CommandSpec[] = [
   {
     name: 'board',
     group: 'board',
-    help: "this space's board, on the plan screen — the last one shown when this space has none",
+    help: "this space's board, on the plan screen, alone or beside what is there — the last one shown when this space has none",
     run: () => workspace.guard(() => workspace.tiles.show('board')),
   },
   {
     name: 'plan',
     aliases: ['special'],
     group: 'board',
-    help: 'the plan screen: the board, the agenda and the calendar, in place of the documents — S goes there and back again; 1 … 9 on the board picks the board',
+    help: 'the plan screen with every view on it: the board, the agenda and the calendar, in place of the documents — S goes there and back again; 1 … 9 on the board picks the board',
     run: () => workspace.guard(() => workspace.tiles.togglePlan()),
   },
   {
@@ -888,7 +888,7 @@ export const commands: CommandSpec[] = [
     name: 'close',
     aliases: ['clo'],
     group: 'tiles',
-    help: 'close the focused tile — q while reading; on the plan screen, back to the documents; asks when its draft could not be written',
+    help: 'close the focused tile — q while reading; on the plan screen the view, and the last one back to the documents; asks when its draft could not be written',
     run: () =>
       workspace.guard(async () => {
         await workspace.drafts.flushTile()
diff --git a/web/src/lib/keymap.ts b/web/src/lib/keymap.ts
index cb0d29d..7aaa11c 100644
--- a/web/src/lib/keymap.ts
+++ b/web/src/lib/keymap.ts
@@ -108,14 +108,14 @@ export const bindings = [
   { context: 'tree', keys: ['za'], action: 'files', help: "a document's own files, folded open under it in the list — again folds them away; p drops marked files in there" },
   { context: 'tree', keys: ['M'], action: 'markAll', help: 'pick up the whole folder — again puts it all back' },
   { context: 'tree', label: 'Ctrl / Shift-click', help: 'pick a row up · every row up to it — drag them onto a folder' },
-  { context: 'global', keys: ['S'], action: 'plan', help: 'the plan screen: the board, the agenda and the calendar, in place of the documents and the list — S again goes back to the documents as they were', essential: true },
-  { context: 'global', keys: ['t'], action: 'agenda', help: 'agenda — late, due this week, in hand, on every board — on the plan screen', essential: true },
+  { context: 'global', keys: ['S'], action: 'plan', help: 'the plan screen with every view on it: the board, the agenda and the calendar, in place of the documents and the list — S again goes back to the documents as they were', essential: true },
+  { context: 'global', keys: ['t'], action: 'agenda', help: 'agenda — late, due this week, in hand, on every board — on the plan screen, alone or beside what is there', essential: true },
   { context: 'global', keys: ['T'], action: 'today', help: "today's diary entry, started if there is none — from templates/day when the diary has one", essential: true },
-  { context: 'global', keys: ['C'], action: 'calendar', help: 'the diary by month, on the plan screen: h/l a day, j/k a week, H/L a month, . today, Enter opens or starts the day among the documents' },
+  { context: 'global', keys: ['C'], action: 'calendar', help: 'the diary by month, on the plan screen, alone or beside what is there: h/l a day, j/k a week, H/L a month, . today, Enter opens or starts the day among the documents' },
   { context: 'tree', keys: ['[d'], action: 'previousEntry', label: '[d / ]d', help: 'the diary entry before / after the one open, by date' },
   { context: 'tree', keys: [']d'], action: 'nextEntry' },
   { context: 'global', keys: ['Ctrl-p'], action: 'find', label: 'Ctrl-P', help: 'go to anything by its name, in every space — words before the last narrow the path, as in proj/ingest; Tab or Ctrl-N/P walk, Enter goes', essential: true },
-  { context: 'global', keys: ['b'], action: 'board', help: "the board, on the plan screen: this space's, or the last one shown — 1 … 9 there shows another's" },
+  { context: 'global', keys: ['b'], action: 'board', help: "the board, on the plan screen, alone or beside what is there: this space's, or the last one shown — 1 … 9 there shows another's" },
   { context: 'tree', keys: ['c'], action: 'capture', help: "capture a card into this space's inbox, without leaving here — reading a document, a card about it; Tab on the line makes it a note, or a line in today's entry", essential: true },
   { context: 'tree', keys: ['q'], action: 'close', label: 'Esc · q', help: 'close the document, and its tile when there are several — Esc first puts down what m picked up, and in the list lets go of a search', essential: true },
   { context: 'tree', keys: ['Escape'], action: 'escape' },
@@ -141,7 +141,7 @@ export const bindings = [
   { context: 'writing', keys: ['*'], action: 'refocus' },
 
   // --- what the views share: the board, the agenda, the calendar, a card's back
-  { context: 'views', keys: ['q', 'Escape'], action: 'close', label: 'q · Esc', caps: ['q'], hint: 'close', help: "on the plan screen: from a card's back to the board, from the board, the agenda or the calendar back to the documents" },
+  { context: 'views', keys: ['q', 'Escape'], action: 'close', label: 'q · Esc', caps: ['q'], hint: 'close', help: "on the plan screen: the view goes, and the plan stays while anything is left on it — a card's back goes back to the board, the last view back to the documents" },
 
   // --- on a board ---------------------------------------------------------------
   { context: 'board', keys: ['h', 'ArrowLeft'], action: 'left', label: 'h / l', caps: ['h', 'j', 'k', 'l'], hint: 'move', help: 'to the list left / right — right of the last, to the tile beside' },
diff --git a/web/src/lib/state/tiles.svelte.ts b/web/src/lib/state/tiles.svelte.ts
index 69f8c4b..5e3e602 100644
--- a/web/src/lib/state/tiles.svelte.ts
+++ b/web/src/lib/state/tiles.svelte.ts
@@ -171,11 +171,11 @@ export class Tiles {
 
   /**
    * `:close`: the focused tile goes, or with only one, what it shows. On the
-   * plan only a card's back goes; closing the board, the agenda or the
-   * calendar goes back to the documents.
+   * plan a view goes as a document's tile does, and the plan stays while
+   * anything is left on it; closing the last goes back to the documents.
    */
   close() {
-    if (this.planning && this.current.kind !== 'card') return this.leavePlan()
+    if (this.planning && this.all.length === 1) return this.leavePlan()
     this.ws.drafts.leaveCard()
     this.current.clear()
     this.prune()
@@ -219,11 +219,13 @@ export class Tiles {
 
   /*
    * The views — the board, the agenda, the calendar, a card's back — are
-   * the tiles of the plan screen. Each is read again whenever it is gone to:
-   * it is looked at in passing, and what it says should be what is true now.
+   * the tiles of the plan screen. The plan opens on the one asked for, and
+   * the others come beside it when they are asked for in turn. Each is read
+   * again whenever it is gone to: it is looked at in passing, and what it
+   * says should be what is true now.
    */
 
-  /** The views the plan screen holds, in the order they are tiled. */
+  /** The views `S` puts on the plan screen, in the order they are tiled. */
   static readonly PLAN: View[] = ['board', 'agenda', 'calendar']
 
   /** The other screen on show, and this one put away as it is. */
@@ -237,14 +239,12 @@ export class Tiles {
     this.planning = !this.planning
   }
 
-  /** To the plan screen, with every view on it, from wherever the documents were. */
-  enterPlan() {
+  /** To the plan screen, with `kinds` on it and nothing else, from wherever the documents were. */
+  enterPlan(kinds: View[]) {
     if (this.planning) return
     this.ws.drafts.leaveCard()
     this.swap()
-    const cards = this.all.filter((tile) => tile.kind === 'card')
-    this.all = [...Tiles.PLAN.map((kind) => this.view(kind) ?? new Tile(kind)), ...cards]
-    this.focused = Math.min(this.focused, this.all.length - 1)
+    this.replace(kinds.map((kind) => new Tile(kind)))
     this.ws.pane = 'document'
   }
 
@@ -258,21 +258,25 @@ export class Tiles {
     if (!this.current.empty) this.focusOn(this.focused)
   }
 
-  /** `b`, `t`, `C`, Enter on a card: to the plan screen, and that view on it focused. */
-  async show(kind: View) {
-    // Coming to the plan, every view on it is read again, not only this one.
-    const kinds = this.planning ? [kind] : Tiles.PLAN
+  /**
+   * `b`, `t`, `C`, Enter on a card: that view focused on the plan screen —
+   * alone on it when coming from the documents, beside what is there when
+   * already on it.
+   */
+  async show(kind: View, all = false) {
+    // Coming to the plan, every view put on it is read again, not only this one.
+    const kinds = all ? Tiles.PLAN : [kind]
     await Promise.all(kinds.map((each) => this.loadView(each)))
-    this.enterPlan()
-    if (!this.view(kind)) this.all.push(new Tile(kind))
+    this.enterPlan(kinds)
+    if (!this.view(kind)) this.add(new Tile(kind))
     this.focusOn(this.all.indexOf(this.view(kind)!))
     if (kind === 'board' && this.ws.cards.boardSpaceId === null) this.ws.say('no space has a board — :set board turns one on', 'error')
   }
 
-  /** `S`: the plan screen with the board focused, or back to the documents. */
+  /** `S`: the plan screen with every view on it and the board focused, or back to the documents. */
   async togglePlan() {
     if (this.planning) return this.leavePlan()
-    await this.show('board')
+    await this.show('board', true)
   }
 
   /** Read again what a view shows. */