When using the SQL Schema tool window on the left or right side of IntelliJ, it'd be nice to have the right pane with the Property/Value table for the currently selected table/column/whatever be underneath or above the browser tree instead of to the right of it. This would conserve a lot of wasted space that the Property/Value table pane takes up.
You could automatically make it display that way when the SQL Schema tool window is on the right or left, and display it the way it is now when it's on the top or bottom even. Or just have a tool window button to switch whether the layout of the two panes is horizontal or vertical.
Just an idea,
-Alex