I've searched the Just Flight forum and cannot find anything that references Download Managers. Maybe someone at MH has an answer. Failing that I'll start bothering the support guys at JustFlight. I recall that there was a reference to using download managers in one of the pages that I read during the purchase process. I cannot find it on the JustFlight site, but I do recall that it allowed for the use of Download Managers.
I purchased the Airline2Sim Q400 training package (download version). Now I'm trying to download the parts (it comes in ten separate "chapters") using Free Download Man