In the Stories sidebar, you can show or hide Projects, Workflow State columns, Epics, or Iterations on the Stories Page simply by clicking on their checkbox or icon.

Clubhouse_Sidebar_Filters.png

To select just one, you can hover over it and select Only from the context menu.

Clubhouse_Show_Only_This_Epic.png

To show or hide all items in a section, click the drop-down next to the section name and click All or None

Clubhouse_Show_All_Epics.png 

By default, Clubhouse will only display unfinished Epics in an expanded view.  To change the list of visible Epics on the Stories page click the three dots.

Clubhouse_Epic_Options.png

There are even more options in the Quick Filters section.

Clubhouse_Quick_Filter_Options.png

Once you create a filtered view that you know you'll want to return to, you can save it as a Space. More on Spaces here.