1) Each client can be brought to main window via hotkey (middle mouse)
2) Each clients small view is fully clickable
3) Some of the small views (e.g. all miners) mirror mouse and keyboard input ONLY when clicking in the small view
4) If a miner's small view is brought to the main view then it temporarily does not mirror input to the others. However the remaining small miners still mirror between themselves.
EDIT: Forgot to cut out my alt names