Funky UI - Unable to put Structure view pane below Project view pane

The new IntelliJ 2022.3.1 (Ultimate) UI seems to be quite funky:

1) My window/pane setup with the old UI used to be like this: 

Left Side:  Project View AND Structure View. Project on top, Structure on button

Middle: Source file view

Right Side: Database or Maven, sometimes in a split pane (DB on top, Maven no bottom)

With the new UI (2022.3) I am unable to dock the structure view right below the project view. Apparently, it is no longer possible that 2 views share the same pane (left/right/middle)?

Or at least, I couldn't figure it out how to do this....

Lastly, It is really complicated to configure toolbars and menu items.  I tried to add a few git actions to the toolbar and gave up after fiddling around with the toolbar configuration ...

Overall the new UI is really horrible from a useability standpoint. Basic view alignments (left, right, middle) or split view are not possible. No drag&drop of views, confusing view modes....