Accelerate key

Use ALT forfeit the term accelerate, it make lot of different...

Why different? Using ALT for accelerators it is standard for Windows

Not true.
Windows standard does need a [ALT] when you want to bring up a menu, e.g. ALT+F for IE's "File menu", but once the menu is up or focus is already on the menu, you don't need to press [ALT] any more, instead you can simply hit an accelerate key not only to move your cursor there but to actually select it. Please see attachment.

For TLB:
1) You will need to press simultaneously with 2 fingers, one at [ALT] another at the &accelerate key (sometime with the 2 fingers strecth widely, not easy, try ALT+Y, you will see what I mean)
2) By pressing the ALT+<key> you only move cursor to the corresponding option on the menu, you need to hit [ENTER] to actually select it.

For IE's pulldown menu:
You need only 1 finger, simply hit the <key> will do all 1) and 2) above (please see the attachment)

So if TLB is complying to Windows's standard, I think the IE's pulldown menu is a good one to follow