It would be nice to have a list of buildings where i want to have buff with the preference of order. My friends then can come and look at the list, set an amount and a duration of buffs and click OK.
So for example: i have 10 buildings in the list and my friend set 3 times sandwitch, so the first three buildings in the list obtain a sandwitch buff.
In the information about the building there will be a button "Add to Buff list" and in the "Buff list" it will be available to remove a building from the list, locate a building on the map and change the order in the list.
The building in the list will be disabled after the buff and after the buff expiration it will be enabled again.