Did you read the feature list and try the demo?
I had tried it a long time ago (it may have been the HAP version), and IIRC does block load. FWIW, i wasn't impressed with the software, it is pretty dated. IMHO the then current Trace version was better. Trace now has an updated version, which is significantly overhauled and all new (Trace 3D). I don't know if Carrier ever updated. Just my opinion, of course.