So, I thought I could edit my above comment days later… I was wrong. So, from now on just status updates and discussion points 
So, Status Update:
The PR now gives the option to download an entire email folder of messages to a system folder. There is one issue currently that (again), is a mailsync issue - damn I wish I knew C++. Downloading messages ties up the worker process, so anything else (like opening an email) will be queued until all messages have downloaded