Hello, hov can i make following: yellow is a unicontainerpanel (width := mainform.width - border )   with 4 red unicontainerpanels .. and should use the neccecary space to show the 4 red unicontainerpanels (with fix width) blue is a unicontainerpanel, what has a width of: trunc(mainform.width /2) - border   .. if calculated  width <  400 then width:  mainform.width - border      thanX for helping Erich