In the desktop app, open Settings → General → Enable Stream Deck, then close Settings. Pairing lasts until Docustrator closes or you sign out.

Select the desktop app you are using.

Lit buttons show the current tool or enabled mode. Dim buttons are unavailable. Document navigation uses the active document panel. Press a tool once to select it; press it twice quickly to lock it. A padlock marks a locked tool. A single press selects it for one use again. Lock Tool on page 2 also toggles locking. Double-press locking requires Docustrator Pilot 0.4.2 or later.

This button identifies the current Stream Deck page. It does not send a command to Docustrator.