would be great to be able to simply right-click a script in the action list and click on "edit script" to open it either in an external or internal editor. Would be great also if Reaper would immediately take over the changes that were made to the script after saving it.
There is an internal editor, and an Edit button down next to the "ReaScript: New" button, and if you're editing a script in the internal editor Reaper will run it when you save...