Keyboard Shortcuts
Preceden has a handful of keyboard shortcuts. Ctrl/Cmd + A and the arrow keys act on the timeline itself, so they do nothing while your cursor is in a text box. Esc is the exception, since it closes a dialog even from inside one of its fields. The last two sections work the other way around: those shortcuts apply only while you are typing in a field.
Add an event
Ctrl/Cmd + A, on a timeline you can edit. Nothing happens if a dialog is already open.
Open an event to edit it
Press Tab to move to an event's name, then press Enter or Space to open its edit dialog, just as clicking the name does. This works on a timeline you can edit, on the names in the list of events below the timeline and, with the Gantt chart layout, on the names on the left of the chart.
Jump to search
Esc puts your cursor in the Search box above the timeline. Press Esc again from inside the box to clear what you typed and step back out. If the Share menu is open, Esc closes that menu instead of jumping to search.
Close a dialog (without saving any changes)
Esc. While a dialog is open, Esc closes it instead of jumping to search. If the icon picker, the color picker or an event's Shape menu is open, the first Esc closes only that picker or menu and leaves the dialog open.
This one works from inside the dialog's fields too, so pressing Esc while you are typing an event's notes closes the dialog and discards what you typed. To keep it, click the dialog's button first (Add Event or Update Event on an event).
Leave Presentation Mode
Esc, which takes you back to the normal editor. See Presentation Mode for the rest of that view.
Drag an event left and right
Hold Shift, then click and hold an event to drag it left and right if the event supports it.
Scroll horizontally while zoomed in
Use the left and right arrow keys. They scroll the timeline only after you zoom in by clicking and dragging across it or by choosing Zoom into date range, since otherwise the whole date range already fits on screen.
Submit a form from the notes area
Ctrl/Cmd + Enter, while you are editing the notes of an event, layer or timeline. It submits the dialog with your changes.
Plain Enter starts a new paragraph in notes, so holding Ctrl/Cmd is how you tell Preceden to submit the form instead.
In the Bulk Editor
The Bulk Editor has a set of its own, and they work the other way around: they apply while your cursor is in one of its fields. Enter moves down the name column and starts a new event row when it reaches the end of a layer, Tab and Shift + Tab move one field forward or back along a row, and the Up and Down arrow keys move to the same field in the event above or below. That article shows each one in action.