Keyboard Maestro IV - Control Flow

Keyboard Maestro is one of the most powerful and versatile Mac apps available. By creating strings of actions-or macros-that connect different apps you can get almost total control over OS X. In the previous three tutorials I introduced Keyboard Maestro, looked at how to launch apps intelligently and, most recently, looked at how to use situational triggers.
If you've been following along with the previous tutorials you should have a good feel for how to create simple macros with Keyboard Maestro. In this tutorial I'll look at creating much more involved macros using Control Flow actions, one of Keyboard Maestro's most powerful features.

[@PassTheLoot]

Any way to get the bottom coordinates of a selection made by either the mouse or CTRL-A?

[@sabinu]

how about listening for a 3 or more keystrokes while not in a text-input-area or word... trigger?

[@LacklusterOfficial]

Hi. Big fan. Could you edit the video description so that you add the blog post URLs into the video description too? Thanks!

[@nesurgrep]

Harry Guiness You ROCK man. Ive learned so much from you and your team at Tuts+. I have to tell you when you explained your TweetBot Public shaming Macro I nearly fell off my chair - what a creative way to keep you "on task" during your work days. I'm curious can you set time or scheduling controls into that Macro so when it is your time to enjoy Twitter you can with out #PublicShaming?

[@ianhutchinson7146]

Harry, hope you're still alive. Could you help me get my head around semaphore lock? I need to prevent simultaneous macros from running.