Everything Crestron (among others) is moving to PoE.
D-Tools needs to really beef up its PoE capabilities. Here are a few things:
Switches can be marked as PSE (Power Sourcing Equipment) with a "power budget". Additionally the PoE class supported needs to be denoted if its PSE.
Powered Devices (PD) need to show their class, as well as actual power demand.
Then something which calculates the total PoE used on a PSE by adding up the PD connected to it (by checking the connections).
Lastly, cable specs for rated PoE power, which are then validated through the wire connections.