b) I already covered that. It's not hard to add three Simulate Keystroke actions, and they can be collapsed (or grouped and then collapsed) if you don't like how much space they're taking up (see gif below). If for some reason you must have everything in one action, AppleScript will do that.
c) To be clear, Insert Text by Typing will not result in keystrokes being recognised as shortcuts. However, if you do actually want to type something a little slower, have a look at this post by @ccstone.
Group and collapse actions:
I'm using a small macro to group the actions:
Group Actions.kmmacros (28 KB)
