Just to be sure, can they be combined because they will be scheduled as separate tasks on separate days. I am still, but I'm sure if it can be done I can figure out a formula eventually.
Just an update: I was able to create this without restructuring our current work flow. Our work flow does not follow best practices, but it does work best for us. After speaking with our build-out tech, this was accomplished through a few simple automations and works great! We now have a calendar that shows all of our tasks, employee holidays, events, anniversaries, and all the other things we need!