Filter by Adviser on Clients & Plans

Need a filter option to show clients/plans by assigned adviser. I imagine this'd be quite useful when paired with tag filters.

As a use-case example: We tag clients with the month of their review to get an at-a-glance overview of reviews happening on any given month, so we'd filter by 'Stu Boyle' as adviser and 'May' as tag to see all of my clients with a review in May.