I believe there was an older thread about this 'disabling' issue but the solution was never found unfortunately.
http://stronghold.heavengames.com/cgi-bin/forum/display.cgi?action=ct&f=4,3853,,all

At that point I found no solution, maybe someone else has any idea about fixing it.

[This message has been edited by Lord_of_Hell (edited 11-18-2011 @ 10:14 AM).]

Anyone else have the solution? Or may I change the whole scripting of my new map which was based on these restrictions.

Hi, Fayes, while you are in editor press "alt+," and this way you are changing map type. To be more precise, you need to get to this screen:



then you press the hotkey, and you a windows will open so you will be able to switch from single to multy or opposite. Then you will be able unable or disable some buildings or units like in scenario map:





After doing this, just press alt+, again, to switch single/multy again... These hotkeys can be found here by the way.

I hope this helps...

EDIT: Now it seems, like I didn't read your post carefully... I've never had any issue with this.

[This message has been edited by EaglePrince (edited 11-25-2011 @ 06:21 PM).]