I do not know if there is anything equivalent for the Mars, but there is a program called Photon Validator for the Anycubic .photon files that will examine your file and report which layers have unsupported islands. There is even an editor feature that will let you modify the pixels so you can either try attaching them to something from the previous layer or extend the unsupported part to connect to something else in the same layer or remove them. I have found it to be an invaluable tool and knock on wood, have not had any failures since running my files through it to validate them. For some of the larger problem areas I just note the layer with the issue, go back to the original file, look for that area, and add a new support then re-slice and start over again. It takes a while, but it is worth it over wasting 10 hours or more on a print to not have it turn out right
Not a very exciting video to watch, but may be helpful when starting out as he gives great tips (although I never use the Autofix option as sometimes it decides the best auto fix is to turn all your bottoms supports into a solid block. Photon Validator stuff start around the 30 minute mark, but there is also some good stuff earlier going through the sliced layers in Chitubox