Marking Jobs as inactive


I have several (over 1000) jobs that I have to mark as inactive soon and can't seem to find a way to do this using the SDK. Unfortunately this is not a feature built into Sage 50 at the moment and marking jobs as inactive one by one takes a long time. 

Looking at the Job class in the .NET API it looks like I can only get whether a job is inactive or not. Currently I'm trying to figure out if I can do this using the COM API.

Any help or confirmation that this isn't possible is greatly appreciated,