Accepting ACE credits does not mean that a school accepts all ACE credits. Even UMPI has limitations on ACE credits and they're VERY generous. U of M Augusta is not UMPI and has their own policies. The other U of M campuses do not accept ACE credit like UMPI. I've looked at their transfer credits in the transfer database and there are few ACE credits listed at the other campuses.
There is not a list of courses offered through YourPace. You can look at each degree offered and see what courses they have. That's the only way to see what is available. There are GEC courses also available through YourPace but they are not listed on the YourPace website.
ETA: I just looked at the transfer database at U of M Augusta and they do not have Study.com listed which means to date no one has transferred in courses from them.
There is not a list of courses offered through YourPace. You can look at each degree offered and see what courses they have. That's the only way to see what is available. There are GEC courses also available through YourPace but they are not listed on the YourPace website.
ETA: I just looked at the transfer database at U of M Augusta and they do not have Study.com listed which means to date no one has transferred in courses from them.