Hey @Tellef_Kvifte, there is a way to do this, and I hinted at it so many times (e.g. here), but always wanted to publish this as a separate article/guide. Maybe today is the day, and I’ll finally do this later today.
The trick is to introduce a table where each row will be a set of inputs and calculations for a specific user, then base the rest of the doc (filters etc) on that table. I.e. not use canvas controls and formulas at all.