Another suggestion would be not gray out the whole UI when something is clicked in Managment. The problem with the gray -from a UI design perspective- is that it's too disruptive and it feels like a screen change instead of a simple "Loading..." feel. I appreaciate the need to lock the screen controls during the loading process but that could be done without graying anything out. I find that not graying the UI out makes the UI feel snappier.

Greetings,
Gabor