Undo - reverses the last action taken
Redo - cancels the undo
Note: RX features an Undo History window, which logs a detailed list of all actions taken, and lets you navigate through them.
Cut - Removes the currently selected audio and stores it temporarily on the Clipboard
Copy - Makes a copy of the currently selected audio and places it on the Clipboard
Paste - Places audio that has been copied or cut to the Clipboard at the current cursor point
Paste Special - Provides additional options for placing the Clipboard data
Reselect - Restores the last selection
Select All - Selects the entire open file
Delete Selection - Deletes selected audio and closes the space with audio from either side of the timeline
Silence Selection - Deletes selected audio and replaces it with silence
Trim to Selection - Deletes all audio except for selected audio
The Find Similar Event tool lets you choose a selection in RX's Spectrogram Display and automatically finds similar events before or after that event.
Add Marker or Region - This will create a new marker point at the current location of the cursor/playhead or a new region if an entire selection is currently highlighted.
Edit Cursor Mode - Select the behavior of the cursor to select by time and/or frequency, or to zoom. These modes can also be selected from the Cursor Mode buttons.
Preferences - Shows the preferences dialog