Whether it is possible to rotate widgets "tabbed pane" and "tabs"? Optionally whether any could be add vertical versions of these widgets?

darocz, you can already choose tabs to be positioned on the bottom from in Properties view. Are you looking for a similar setting for left and right? I am not sure what you mean by "vertical version". Are you looking for text being written vertically inside tabs?

Exactly, and if the text would have been written vertically ... it would be perfect :) Best regards.