...
Resizing panels is not intuitive, you need to go to "Inspect" instead of "Edit" and choose "Panel JSON" which you then edit directly (look for "GridPos" and edit "h" and "w"):
...
Resizing panels is not intuitive, you need to go to "Inspect" instead of "Edit" and choose "Panel JSON" which you then edit directly (look for "GridPos" and edit "h" and "w"):