I haven't really done many of my macros within IS Boxer.
Most of my stuff is set up as a Keybind action, to a macro that resides within the Warcraft client.

I can certainly see the advantage of centralizing them within the software.
Rather than having a Paladin open (from one team) which lets me copy/paste their macros over to a Paladin on a new team.
And then log the rest of that team in, to copy/paste to the other four...

The Wow Macro Library, and Named Macro Action are powerful.
You can set the targets, either as a character set or as individuals, for a given macro set.
So you can use team specific macros or role specific, such as all healer Paladins across every team.




I like the idea of a spreadsheet for keybinds.
But doubt I'd ever go to the trouble of making one.