$send(0) returns total amount sends, there is no connection separation like with $chan(0).
Example situation:

I'm on two networks, same nicks.
I a file to myself on network 1 and another file to myself on network 2.
I have an alias that returns the Nth number of the send for a given wid (window id).
Then, if I do /close -s $send(thatNthnumberhere) it closes both sends instead of just the Nth one, because that $send(number) returns a nick.

I need a way to abort only the send with the given $send().wid property, not affecting any other sends to same nicks.

Why doesnt $send() behave like $chan() and only shows the windows/sends with the current cid value?