Hello @Jim Haas
Thank you for reaching out on the community and telling us about your issue. I do apologize for the issue you're having. You should be able to do this by editing the monthly reminder a little bit. When you're selecting the bill you'll want to make sure it's monthly then click the little sideways arrow to the left of the start date. This will list the options down below. You'll want to change it to every 2 months and this should set it up for every other month. I'll leave a photo down below.
Let me know if this helps you out. If not we'll see what we can do next.
Thanks,
Quicken Francisco