Can the Forms do calculation?

Hi @Gemma Huang , Welcome to the Community!!

That's an interesting way to use Assets, @Tuarn McInerney !

Do you know how Gemma's problem could be solved without using Assets (e.g., if Assets aren't available)?

Hi @Gemma Huang 

We have similar set up in our instance. Using Assets to host the matrix

And Each object is a different combination of the the two options. 

Automation then simply runs and updates the required field with the required option. Works great for us.

Goodluck:)