Looks nice, you're getting better at dialogs.
One thing I would change though:
dialog Confirm {
title "Confirm Delete"
size -1 -1 84 36
option dbu
box "Delete Channel?", 1, 3 1 78 33
button "Yes", 2, 10 16 29 9, ok
button "No", 3, 44 16 29 9, cancel
}
Instead of a separate dialog, you can use an $input event to handle that.
In this script, however, I would use something like:
noop $input(Delete Channel?,ywk5,Confirm Delete)
/noop means no operation, if you didn't know.
To further modify this, you can do something like:
$iif($input(Delete Channel?,ywk5,Confirm Delete),remini BChannels.ini Channels $did(BSD,6).sel)
/help $input for more information on how to use them.