Archiving items on the sent tab of the inbox

Is there any way of archiving items on the sent tab? It would be nice to be able to see only those items where a question was asked and no reply had been received. Happy to do this manually.............

Currently I am starring the tasks where I've asked questions, and then removing the star when i question is answered, but unfortunately you can't sort the list based on this (or anything else that i can see), and it's a very long list now........

Until such time as there's a product 'fix' does anyone have a better workaround for this?

help.wrike.com/hc/en-us/articles/115004480365-Release-Notes-August-8