PowerBI What-if Analysis Support

Hi, I need help with PowerBI what-if analysis parameter where I would like to be able to change a date value (e.g. a support date) directly in the dashboard and if this passes a defined threshhold then a value in a column in one of my tables should be switched from 1 to 0 (or vice versa) but this should reflect directly on the dashboard. More details will be provided if you are interested in supporting this. Please note this requires minimal effort as I just need assistance to implement a proposed solution.