Collapsing the Planner Sidebar
When you first access the Collaborate app, the sidebar is displayed at full size. However if you do not need to access the features in the sidebar, you can collapse it to increase the screen space allocated to the Planner Explorer.
To collapse the Planner sidebar:
Click the Collapse button on the right side of the sidebar header.
Click the active (blue) Filters or Topics button in the upper-left corner of the sidebar.
To restore the Planner sidebar:
Click either the Filters or Topics button in the far left-side of the Planner Explorer header.