Show list of assignees on the Scrum Planning Board

During our planning meetings after we've assigned out stories, we like to quickly look at each developer's workload before starting the sprint. I've resorted to creating a quick filter for each developer, but it is cumbersome to have to undo a filter and select a different filter.

It would be great if all the potential assignees (users in the Developer role) would be displayed in the left area of the Scrum Planning Board and function the same way the epics and versions do.