Not exactly Macro’s but I have several custom key codes because I need them to pass through my KVM HID port so I can still use my keyboard for KVM switching.

Visio:

CAP+ W - Center Window
CAP+ G - Group 
CAP+ F - Ungroup 
CAP+ R - Right Align
CAP+ L - Left Align
CAP+ C - Center Align
CAP+ B - Bottom Align
CAP+ T - Top Align
CAP+ M - Middle Align
CAP+ V - Vertical Space
CAP+ H - Horizontal Space

Windows: CAP+ S - Snip tool

Linux: CAP+ SLK - Rectangular Region in Spectacle

I probably have some more but thats what I can think of off hand.