@iostrym yep, and if you select a unit in-game that can build the thing you want to build, then the UI automatically calculates the time to build and the resource cost from that specific unit, or do the basic math to compare units that you know the build power of (A T1 engi builds at 1/6th the speed of a T3 engi, or 1/2 of an un-upgraded ACU, etc)