Hello Sherzod, thanx for your work  🙂 This solution works for just 1 time ..  if i add lines (uniButton_add.onClick -> unimemo1.Lines.Add('****');   )  - the memo grows ...  if i clear the lines (uniButton_clear.onClick  -> unimemo1.Lines.Clear; ) and click uniButton_add AGAIN - the uniMemo didnt grow again  Thanx Erich