Specify length of time an "update" remains blue to distinguish that it is new

Description

The update indicator in the portfolio view remains blue for one week after a new update has been made before switching to gray. We collectively meet with our stake holders every two weeks rather than every week. Being able to set the length of time the update indicator remains blue would help us ensure our new business is discussed.

What are you trying to achieve

Request feature to set the amount of time updates are highlighted as new at different levels (task, board, portfolio, etc).