debugger shortcuts

[Vladimir Prus]

Hello,
I'm somewhat surprised that the debugger does not privide shortcuts for such
common operation as "step" and "step over". Some other IDEs bound those
actions to F keys. 

What's even more puzzling is that actions like "View -> Hide icon border" or
"View -> Show line numbers" have some F keys as shortcuts. IMO, this does
not correspond to the relative important of "Step" and "Hide icon border"
command. The step command is way more common.

So, is it possible to change this?

- Volodya