Hi xor
... 1- ( double click = full screen ) ...
Is this what you are looking for:
2. Currently, Ctrl-Alt-M will toggle a window between normal and maximized size. I came across a couple of old posts where
members ask about doing the same by double clicking on the titlebar (ala Windows). That too has been incorporated.
It was added to version 1.20 of flwm and flwm_topside in TC10 and higher.
2- ("Top side" title bar !!! ) please !
I don't understand what you are asking for. Both flwm and flwm_topside have title bars.