[?]: WinCC7.0 simulation faceplates via Graphic Designer

[Netik]

I encountered with some difficulties when I make changes in project.

I try to simulate faceplates step by step on screen.
In project I have several station, most of them works via TCP-IP connections.

Main problem is that I couldn`t run screens from project separately.
Graphic Designer give message that activating OS object can cause problems in communications from other operator stations.

System give information that this interlock can be bypassed (Properties dialog in project "Options" and that it resolved via setiing
"Allow activation on ES".

Where is such options located?
In Simatic Manager I couldn`t find such option.
My regards...