Save a selection of contacts

When I want to add current contacts to other lists, and I search them in the list... and click on their names, their names do not stay checked as I search for additional names. It makes it a much longer process. It would be more time efficient if we could search the names, check the ones we want, continue searching, then manage lists and add them all at once to the new list. Currently, unless you 'check' the names through scrolling, only one name will stay "checked" for you to add them to a new list. Thank you, Alexa