Queues Add in Front
Add in front of Queue
If a construction unit has a (long) queue setup, but you need to quickly build an Anti-Air defense for example.
Use ''Space'' and issue the priority build order
This will build this order 'in front of the original queue'.
The construction unit wil immediately go to the new build-order, construct the AA defense, and it will keep the initial queue in it's memory. After completion, it will go back to it's initial build-queue.