Hi @bbts915
Iiuc, you want this kind of alternation Weekly alternation by month
You can set that up using monthly repetition and multiple schedules attached to a show. For example this is on the 1st and 3rd Saturday of each month.
Use the cog icon at the right of the schedule box to expand the advanced options. For a show on the 1st, 3rd and 5th Saturday you will need three schedules attached to the show.