can't edit rank separation in automatic layout
 

OK. I'm working on a flow chart and have automatic layout turned on. I edited rank separation and object separation to tune the final diagram and hit save. I decided to edit it a bit more and now OGP doesn't recognize my keystrokes. I can highlight the text field, but typing does noting. It also doesn't recognize my cursor keys, in fact when I have an object selected, it moves left/right/up/down, instead of the cursor in the separation field.

What happened to "protect" this value and how do I undo it. I've run into this in the Alignment options also, when I'm editing object spacing.