for umlauts and the like.

how?

http://www.mckinnonsc.vic.edu.au/la/lote/german/materials/umlauts.htm

Oh yeah. I forgot about that. I use a Mac, and it's not done the same way.

for cad, all the time. View hotkeys, dimms and such.

I do when I have one. It's the fastest way to use MS Calculator when you have to.

Yes, of course.