About 1 key vs 2 key vs combination keys:
As I've watched this thread, I've had a resistance to two key combos, because I've imagined being back to pressing "enter" all the time. But - as I think about it...
1 - that's not necessarily so.
2 - I find combinations much harder to do than two keys, even if "enter" is required. I have to stop, look, and worse - use two hands - for Ctrl-Alt whatever.
I can do my two keys and enter in acrap with my eyes closed and one hand behind my back (or better yet - one hand staying on the mouse)