Empty Your Buildings
If you are a building owner who has made your property available for other players to add Skilled Workers you want to make sure you are not blocked at the end of their shifts. Other players who are managing their own workers have the ability to remove them from your buildings but what happens if they forget or they don't return to the game for a while.
Simply click on the "Empty All Buildings" button below and this will push all Skilled Workers out of your buildings. These could be your own Skilled workers or other players. This free's up your building to then be available for more shifts.