KDE: Unique Toolbars on different Activities

Hello altogether,

I wonder if it’s possible to have a unique toolbar-layout on different kde-activities. As soon as I add, remove or modify a toolbar, the new settings are applied to all the other activities as well.
For example: When adding a new activity, I’d like to move the toolbar from the bottom-edge of the screen to the top one. When returning to the old activity, I’d like to have the toolbar on the bottom again - which is unfortunately not the case.

Am I missing something?

Thank you for your help!
Simon