At the moment, Assignees/Language in Project Filter have all available assignees/languages ticked, and if I want to filter only e.g. three languages out of 24, I need to un-tick 21 language, while it would be less time consuming to be able to clear all, and then just select the three that are relevant. Same for assignees, it can be a long list to un-tick with multilingual projects. It is not a problem with File Phase and File role as there options are limited.