Excel for Mac: What is keystroke for line break in cell?

Factual Questions
1

I know that ALT-Enter in Excel for Windows puts a break in a line in a cell, but what is the keystroke for Mac?

Thanks for your help!

2

Sorry, it looks like option-fuction-enter. A mod can delete the thread if desired.

Apologies!

3

Function? My desktop Mac keyboard doesn’t have one of those. My iBook does, though.

4

I think that’s supposed to be Command-Option-Enter.