The ability to collapse\expand all on the Teamwork board and Backlog management board

When there is a large number of groups on the Teamwork board or Backlog management board, you have to manually collapse every group. For example, the product work on the backlog management board may have 30 releases, each with 20 features. Every time we open the board, we need to spend 30secs or more collapsing everything

The impact is a large and frustrating waste of time. When this is applied across a team of 20 people, the cost is substantial.

Simply add a +\- to expand all\collapse all on the following

1. Product work and Engineering work on the Backlog management board

2. Workflow on the Team board and My board

This is a easy to implement, low hanging fruit, with big value.