Auto-complete in the 3.0 script editor

[Ben Rubinstein]

I'm sure I'll feel a fool once it's pointed out to me, but can someone tell me 
how to access auto-complete in the new script editor?

I assume it hasn't been removed as a feature, since the release notes say it 
has been improved; but I can't find a reference in the docs at all, the old 
key combos don't do it, and I can't figure what does.

TIA,

- Ben