RE: [External] : Discovering the Key Sequences active for a particular buffer

[Drew Adams]

> Is there any help command that lists the Key Sequences active for a
> particular buffer ?

`C-h b'

But you don't specify what you mean by "active for a particular buffer".  You 
can invoke lots of commands in a given buffer that aren't "particularly" 
designed for that buffer, depending on what's meant by "particular".

Perhaps you really mean commands defined for a given major mode and bound to 
keys in the mode's keymap.  But it's not clear that you mean that either.

As usual, your question doesn't help itself.