I really like Root Network cards and started playing them again. But there's an issue:
When I try to connect some buildings/units with Root Nexus (or any other Root Network building), I try to place them as far apart as possible, to not waste space/energy/charges. The problem with that is that you can't see the connection range while Root Network buildings are still under construction or while you're placing them. This means that you either have to wait until they're done, to see whether your network is gonna work, use other cards with the same range to "measure" the max distance, or just