Extension of window lifter engine Renault Megane Coupe Cabrio

In my megane cabrio bj.2005 the window on the driver’s side doesn’t work anymore .now I have dismantled everything and have only tried to expand the motor for the window lifter but unfortunately can’t see if the one rail is glued/welded or if it is screwed somewhere. I have solved the one screw in front but can’t get the motor out. Now my question….can you remove the motor alone or have to d Is it possible to extend the entire frame for the window?? Would I be happy about any help?