Reminder to expert server ATC
At Dubai OMDB, there are 2 roads behind the parking. If you look at the map you can see planes on the road so if someone wants to pushback you may think to press hold position, but you should check which road the plane is on. You can say pushback approved if the other plane is on the far road.
This happened to me many times the ATC told me to hold position but the other plane is on the far road.
Another reminder. If you go offline then people can continue playing the game and do not need to wait for ATC to come back online.
I taxied while the ATC went offline and when ATC came back online he said wait for permission before taxiing.