If you're on a Mac, you'll be much likely to accidentally move parts of the interface if you turn on the Application Frame (Window > Application Frame).
I am Windows unfortunately, so don't have this option.
Any idea what the white squares are for on the text box?
The white squares (upper left and lower right) and used to "thread" text from frame to frame. The upper left one is called In Port, and the lower right the Out Port.
Thanks! Now that I know what they are called life's so much easier