library for GUI questions

[faustf]

Hi i want  create a libray for call button in simple mode like  _GiuButton( param...)  but i want create a generic _GiuButton , in this mode when i want create buy and sell button i  simply do in this mode   _GiuButton( param buy ...)  _GiuButton( param sell...)  , but i have  some dubt , i saw  this page  https://www.mql5.com/en/forum/158187  where @Donald Gibson  create  for button buy and  button sell (and other button) the  skeleton , therfore  i ask me  is not possible create one skeleton and after   when call it change some param  ?? thanks  at all