Add shortcut for running one step at a time

With the new recording functionality, there’s an option to run one step at a time using this button:

It would be nice to have a keyboard shortcut available for it as well. :)

Current setup seems to be:

• Ctrl+Alt+1 = Resume running

• Ctrl+Alt+2 = Record from here

• Ctrl+Alt+3 = Edit and rewind

• Ctrl+Alt+4 = Finish and close

Maybe the sequence could be updated to:

• Ctrl+Alt+1 = Resume running

• Ctrl+Alt+2 = Run only next step

• Ctrl+Alt+3 = Record from here

• Ctrl+Alt+4 = Edit and rewind

• Ctrl+Alt+5 = Finish and close