Filter for user-defined pin fields

As a user, I would also like to be able to filter pins by user-defined fields - for example, by slider fields such as "Priority" (low / medium / high) or by number fields such as "Cost".

There is currently no way to filter such fields specifically. I would like all created pin fields to appear automatically in the filter area - even if there are many different fields. This would allow me to search for specific criteria and find and evaluate relevant pins more easily.