Hi,

I agree with your other points. To avoid needing to add an extra argument
to combineTwoP, which breaks configs, you could follow what is done in
XMonad.Layout.MouseResizableTile for setting draggerType and other
parameters.

Hi

Good point. Will try to follow the same pattern, just need a good parameter name

combineTwoP {allowEmptyPane = False} x y z w

Not promising a quick fix though, a bit busy in the nearest days..