A level 18+ Healer has the class power to 'a'pply First Aid and Healing to other characters.

Currently the player is prompted when 'a'pplying First Aid with:
"Do you want to help someone else? [y/N]

With the First Aid skill being so nifty now, it is a minor inconvenience to seek out the 'n' key whenever the player wants to apply First Aid to the player character.

I propose that the player is prompted in a similar way as when 'a'pplying the Healing skill:
"Which direction [789456123], Z = ABORT]?"

As you can see I added a 5 in there, so the player character can be targeted to apply First Aid to him/herself.

This way the player doesn't need to seek out the 'n' key on the keyboard whenever he/she want the PC to 'a'pply First Aid to self. He can simply press '5'. As I'm assuming most players have their right hand on the numpad most of the time.

This will be especially handy when First Aid is quickmarked, which means a fast 'a'pply, quicmarked numpad key, 5.