When I say parent, I mean what "display object" I need to use to get tables in one area and bigger table scrolling with that area. I know it should be widget, but don't have clue what widget to use. Yo've named QScrollArea. But, correct me if I am wrong, QScrollArea can only have one child widget. Am I wright. The whole problem seems to be (at least that's my point of view at the moment) which display object to use, so tables can be shown in it as child widgets. That means, to have autoscroll, when lower table is formed (because tables are not created at the same time, lower table needs to be created when item is selected in upper table), so the user can scroll that big display object in which are tables. So, which display object to use?

Thanx for your replies on both topics