My "weekend" is actually Monday/Tuesday, any way to make this work?

As stated in the title, I work Wednesday-Sunday, and I'm off Monday/Tuesday. 
The app only lets me set repeating items daily, weekly, monthly yearly, and then custom.
Custom allows for repeat every x days, weeks, months, etc.  

Please consider setting "custom" to allow users to choose what days the item should repeat. It's common for calendar apps to show a list of the week days, and allow you to choose whichever days you'd like. 

Or if I could just set weekends to "Monday/Tuesday", and treat it as such.


Edit: I meant to post this as a question: Is there a way to do this already, or is that not possible?