Set a rotating training schedule, not just one repeating week

Your availability is one weekly pattern that repeats, which does not work if you are on shifts or any rotation that runs longer than seven days. Today that means editing your schedule by hand every time the rotation comes round.

This would let you define the whole cycle once, for example a four-week shift pattern, with the days you can train and how long you have on each of them, and let your plan follow it from there.