@ojuris : Thank you it works, but can you please give me the steps, I see that you used strech action to do this, so, usually, we have to click "stretch" action, then "select parameter" = "bar diameter top" then "select parameter point" = Grip of "bar diameter top", then draw the "strech frame" , then "select objects" , then click "enter" ... so, this will do the trick for top side. But how did you use, the same parameter "bar diameter top" (which is in top to bottom direction) as the parameter for left side strech also? ("strech6" in your provided drawing)
Regards!
