Vertical tabs in a TabSheet

The default Tabsheet displays the tabs horizontally and the panel associated vertically. I want to create a TabSheet where the tabs are on the right hand side and the panel is displayed horizontally. Is it supported by the framework?

Not by the component TabSheet, no. But It is quite easy to something that resembles a tabsheet by hand. I usually do a Layout with buttons and an empty Panel next to it. The button works as tabs and by pressing it you give them a “selected” style and show a certain “tab” in the panel.

I do this quite often even if I want the tabs at the same place as the TabSheet has them, because this is easier to theme and you can easier add logic before and after tab switches. The downside is that you have to create the theme yourself to make it look good.