Keurig Coffee-Maker technical question: How do I get the "my cup" accesory to fit the "Office-Pro" model coffee-maker?

It appears that the “my cup” mini-filter made to fit the Keurig only fits the domestic, and not the office model (which I chose for the multiple fluid oz. settings) I’m hoping there is a way to MODIFY the accesory to make it fit. Has anyone done this? If so, please tell ne HOW.

(Also, I like that I won’t have to take apart each cup for recycling every time. The grounds themselves are good for adding nitrogen to the soil in my gardens. plus slugs hate crawling on them.)