By clicking and holding MMB on an object on the map a context menu appears. The player can set common settings here like pushing a building out of service.
First the player have to click one building with the MMB and hold the button. To activate an option he have to move the mouse on one button while holding the middle mouse button.
A few common functions are:
- Push a building out of service
- Upgrade a building to the next class
- Forced request to pick up goods by a branch office cart
- Pull down the building
This feature should allow the player to attend the most common functions with only one click.