Here is a test case. I need that the panels looks like in the sample but they must fill the form when the form change it size. When I try to set layout = 'fil' on the form, then the top component (UniScrollBox1) looks as expected but the bottom panel (UniContainerPanel1) totally disappeared from the form, and this panel is needed at the place. I try to set many different combinations of the layouts but could not find proper for my requirements. Sample is uploaded above.