Starting with the release of Strategy ONE (March 2024), dossiers are also known as dashboards.
In my example I want to exclude from my grid all the employees that had sold anything on 1/24/2016. I want to filter Blue grid in such a way, so the result would be equal to the Green grid below.
Blue grid

Green Grid

Filter that I am going to apply:

You can read this filter as: a list of all employees MINUS Employees that registered sale on day 1/24/2016
A video of the solution:
I also attach this dossier in mstr format (Strategy 2020)