If you want to minimize the number of support units in a HQ unit, but still allow automatic transfer through that HQ
unit? Use a setting of ‘0’ so that the only support units the computer will send to the HQ will be the permanent levels of construction and engineers
so you can use 'locked' globally, lock everything and do your allocations manually or in part of the OOB to block out some of the path (up or down), but 0 simply means 'don't stop here'