Toggle between two reading layouts from the Layout control in the toolbar, or set a default under Inbox options (the gear) → Email settings → Reading. Both the toolbar toggle and the settings control share one preference, so a change in either is reflected everywhere and syncs across devices.

• Split — the email list and the reading pane sit side-by-side. Available on screens 1024 px and wider.
• Focus — the message reads full-width; the list shows on its own when nothing is selected.

In Split view, the dividers between the email list, the reading pane, and the CRM context panel are draggable. Your widths save automatically and sync across devices via the user_ui_preferences table.

• List ↔ reading pane — clamps between 320–720 px.
• Reading ↔ CRM panel — clamps between 240–480 px.
• Double-click a divider to reset to the default width.
• Focus a divider with Tab, then use ←/→ to adjust by 16 px steps.

The reading pane uses a single scroll container. The subject, From/To headers, and email body all scroll together, with no nested scrolls and no pinned subject row. The bottom of the email gives you a fresh Reply / Reply all / Forward action bar so you don't have to scroll back up, and it means exactly what the same three buttons at the top of the pane mean: Reply and Reply all move your cursor into the reply editor below the thread, and Forward opens the compose window.

The formatting bar is the same control wherever you write in Laureo: the reply inside a thread, the pop-out compose window, the bulk email panel, the signature editor, the template editor, the campaign editors and the outreach sequence steps. It is one row at every width. What does not fit collapses into a More formatting button at the end of the row instead of stacking into a second row, so a narrow column and a wide window differ in how many buttons are on show, never in how tall the bar is. A surface that needs its own controls, such as personalization tokens on a template or a sequence step, adds them to that same row.

The two email composers, the thread reply and the compose window, also share the rest of it: a paperclip that is the only attachment control until something is attached, a drop overlay that appears only while you are dragging files over the window, and one schedule menu. Neither grows its own version of any of these.

The toolbar is organized into two rows. The top row leads with the Compose button (far left) followed by your inbox tabs (Inbox, Starred, Snoozed, Sent, Drafts, Scheduled, Done, Trash). The second row holds the All / CRM / Cold filter, the category Filter, Sort, Layout, search, and the gear.

• Sort and Layout stay visible — they are view states you toggle often.
• Inbox options (the gear) holds the set-once / less frequent controls: Row density, Refresh, Keyboard shortcuts, and Email settings (which now includes your email notification preferences inline — no jumping to a separate page).

• Sidebar Compose — always visible on the left rail.
• Toolbar Compose — the primary button at the far left of the toolbar's top row.
• Keyboard — press C from anywhere in the inbox.

• Drag the top-left corner of a docked compose window to resize it. The size is remembered for the next one you open.
• A remembered size is always fitted to the window you are on now, so a large one saved on an external monitor opens sensibly on a laptop rather than off-screen.
• Maximize in the title bar is the keyboard-reachable way to switch between the docked size and full width, and back.