Audio production · Stream Deck plugin
A large part of REAPER's action list has no default shortcut, so a keystroke plugin cannot reach it until you go and bind something first. Sending REAPER its own command id skips the binding step, and the deck arrives already able to drive the app.
On the Elgato Marketplace
Windows 10 or later, Stream Deck software 6.9 or newer, and REAPER 7.79. The Stream Deck + XL seats six of the seven dials on its hub; a Stream Deck + seats Track Painter, Track Volume, Track Select and Horizontal Zoom.
Read the full quick fixes, or see this plugin on the support hub.
Still stuck? Email [email protected] with the plugin name, your Stream Deck software version, and what you pressed versus what happened. A human answers.