Edit MIDI Remote Mapping
1. To get an overview of which parameters are MIDI remote controllable select "Edit MIDI Remote Mapping" from the Options menu.
When done, each device you select will show a green arrow symbol beside every parameter that can be assigned a MIDI remote.
2. If you click on a assignable parameter, a dialog appears allowing you to select a MIDI controller (or a Note number) to control that parameter.
Note numbers function exactly like Keyboard remote - they can only control on/off or min/max values.
3. Make sure that the "Learn from MIDI Input" box is ticked.
4. Simply turn the knob (or slider etc.) that you wish to use to remote control the parameter.
The "MIDI Received" field momentarily flickers as you turn the knob, and then the dialog shows the controller number and the channel it is transmitted on.
5. Click "OK" to exit the dialog.
The selected parameter now has a tag, displaying the controller number, and the MIDI channel used.
6. To exit Edit MIDI Remote Mapping mode, deselect it from the Options menu.
You do not always have to use this method - see below.
If Edit MIDI Remote Mapping is enabled (ticked) on the Options menu, assigned parameters are "tagged", and the arrow indicators show the assignable parameters. In this mode, however, you cannot operate Reason normally, as every parameter you click on will open the MIDI Remote dialog. The Edit mode is primarily for overview of available parameters and the current assignments.
Another way to assign keyboard remote commands is to have "Edit MIDI Remote Mapping" deselected on the Options menu, and to simply [Ctrl]-click (Mac) / right-click (Windows) the parameter you wish to remote control.
This opens a pop-up menu, where one of the options will be "Edit MIDI Remote Mapping". Selecting this opens the MIDI Remote dialog. Thus, you do not have to select Edit mode from the Options menu if you already know that a parameter is free and assignable.