Showing them is one thing, and quite complex, but I can give you links. Adding x’s to remove them is far more difficult. You would, in either case, have to do the coding yourself, as such custom coding is outside of our normal support. I think this feature is coming in V3, which is in development.

This thread might help you:

https://support.searchandfilter.com/forums/topic/accessing-field-slug-on-search-results/

… and this search will give similar threads I think:

https://support.searchandfilter.com/forums/search/sf_current_query+get_array+field+%5Bvalue%5D/