In ST3 (OS X) I use shift+space to move the cursor one space forward, i.e. with something like:
{ "keys": ["shift+space"], "command": "move", "args": {"by": "characters", "forward": true} },
I find myself wanting to use this in other applications too. I thought I could use Keyboard Maestro to write a macro that did this, but haven't got very far. Any suggestions?
In Keyboard Maestro there is a 'Simulate Keystroke' action that you could use to do that.
Create a new macro, triggered by 'Hot Key Trigger', and set your hot key. Add a new action, 'Simulate Keystroke', and set the keystroke.
Here's a screenshot of the test macro I made: