URL Parameter Filtering Question

Hi everyone,

Is there a way to URL parameter encode a filter that filters multiple choices at the same time?

Example: http://myairtableurl.com/abcdefg?filter_Region=Region1&filter_Region=Region2, or ?filterRegion=Region1+Region2

It only seems to allow me to filter by one at a time, and I’m not sure if it’s impossible, or if I’m just missing the right character to join the two filter search terms.