Smart Filters; Drop-down selection options when creating Filters

I have found creating Smart Filters where one of the criteria is the based upon a key-word that I have residing in my Keyword Library is currently very cumbersome . It would be extremely helpful if when creating a filter based on a 'keyword' a selection arrow would display the entire Keyword Library and you could scroll through it to select the 'keyword' that you wanted to use vs. having to re-type the key-word.