Hiding the Query helper and other panels

Hello, all

Is it possible to hide the various panels only to bring them up when needed?—

1. the query helper on the left, with Columns, SQL Functions, &c,
2. the tree on right, with schemas and tables,
3. the log on the bottom.

I prefer to move away as much the clutter and distractions as I can help. Futhermore, I work on a 4:3 1200x1024 display and have to take care of my screen estate.