Linked Variables and Key-Value Variables (at the same time)

Hey sowden, glad to read you again.

Yes we did: Change title based on condition (Repeating Panel)

But, that was for one key-value variable. Now I want to link key-value variables to get the following functionality:

Example:

3 keys: cat1, cat2, cat3. They will be referenced in each key value variable.

In 1st variable, user selects cat1.

Then, they should only be allowed to select from cat2, cat3 for the second key-value variable. This is why I want to link them.

Think it’s possible?
It’s very straightforward to link ‘normal’ variables, but key-value variables seem to not be compatible with the “Query” variable type, as I tried in the query above.