[Challenge] Button Option to Expire Challenge

Elaboration:

Instead of having to manually set the expiry date and/or time beforehand, can we have a button option (similar to Publish/Unpublish button) for admins to quickly expire a challenge. 

Sample Use Case:

Admin have an ad hoc decision to expire a challenge immediately and in order to do that, they will have to schedule the expiry by selecting the date and the intended time (by the minute). Taking into account our GMT + 0 timing, you can imagine the effort needed to expire a challenge immediately. 

Hence, if there is an option to expire the challenge immediately, it will be a time saver.