[STUMP] Prefix-Lock

>I was demo'ing Stump to a coworker this afternoon and in order to cycle
>through windows it was constantly PREFIX n, PREFIX n, PREFIX n. Normally
>not a big deal, but with 6-7 windows and without having set binds for half
>of them it gets a bit annoying; he picked it up and commented on it.
>
>So, here's my idea: Have a binding like PREFIX C-l that locks the PREFIX
>key on. Each time a keychord completes, it'd revert to having just PREFIX
>entered.
>
>For example:
>
>PREFIX C-l
>n
>n
>n
>ESC
>
>instead of the former. I have a couple of questions about this.
>
>1) is this a good idea? Any major pitfalls that I'm not seeing?
>2) if it's a reasonable idea, is there already a built-in way to do this?
>3) if it doesn't already exist, what's a good way to go about it?
>
>Ideally I'd like to be able to do it on submaps as well (eg s-w s-m is my
>prefix for MPD control).

Look for command-mode definition and try to create an analogous command
fr your specific use case.

I must admit that I am not sure how precisely to use command-mode, but 
it looks like pushing the binding maps should allow your functionality 
easily enough.