Board Thread:The Quarters - Q & A/@comment-2001:16B8:1816:6600:1167:ADD6:7B7F:6B21-20191225020603/@comment-27659888-20191225182121

You would have to use Group Plans with the website client for that to work. There you can assign tasks and choose to reward or not reward based on the completion of the task. (Ie deny the whole group completion unless the whole group completes).