Multiple Functions Macro

Hello everyone. I recently started using Maestro for audio editing purposes.
I work in a program called ProTools and I'd like to make some macros to speed up a process or two.

I played with Maestro a bit but couldn't get it to work as I intended.
My goal is to make Shift+Return to engage in that order, and then Delete (separately).
Is that possible to configure Shift as a trigger key and Return as the key that comes right after? (while holding Shift)

Thanks!

Yes, try something like

KMN121

and also click on the CogWheel for options like press and hold.
and see https://wiki.keyboardmaestro.com/action/Type_a_Keystroke.

Also see if you can do what you want using drop down menus, it tends to work better than keystrokes.