A Control View page can hold parameters from any plugin on any track. Start listening, then touch each parameter in REAPER, and a bound knob appears for each one. Control View is part of the one-time unlock.
- Open Control View (the Ctrl tab) and pick a page in the rail.
- Tap Edit in the top bar.
- Tap an empty spot on the page. The Add sheet opens.
- Choose From listen. The listen sheet asks you to touch parameters in REAPER.
- In REAPER, touch or move a parameter in any plugin window. A knob for it appears on the page. Repeat for every parameter you want, across as many tracks and plugins as you like.
- Tap Done on the listen sheet to keep them, or Cancel to throw the whole batch away.
- Tap Done in the top bar to save the page.
The same listen session also catches REAPER actions: run one and it becomes a button. See Make a button for any REAPER action, custom action or script.
Every control arrives as a knob. To turn it into a fader, button or dropdown, see Change a control’s type, label, colour and value readout.
If it doesn’t work
- A parameter is skipped. It is already bound in the same section, and MixSurface names the control that has it.
- Nothing arrives. See Listen mode doesn’t pick up a parameter or action.
- You want a track’s volume or pan. Those live in the Mixer. A track appears on a Control View page as a meter: see Add a track level meter or a gain-reduction meter.