How to bring back top and bottom tool window bars?

Question

How do I open tool windows side-by-side on top, and put bottom tool window buttons to a horizontal bar at the lower edge of the IDE window, like I did in the Classic UI?

Answer

You can set up Tool window Top Left and Top right placements, along with the tool window bars on top and bottom as they were in the Classic UI, using the Extended Tool Windows UI plugin available since 2026.3 EAP 3. To get the plugin follow these steps:

1. Go to IDE Settings > Plugins.
2. Type "Extended tool windows UI" in the search field.
3. Press "Install".
4. Restart the IDE.