Is your feature request related to a problem? Please describe.

Using the a 'Section' is great for hiding categories.

It would be nice to know if a collapsed section has items in it.

Describe the solution you'd like

Option box on the Section like:

[ ] Show count (when collapsed)

When checked, display a total item count for that Section like:

'Section Name (41)'

indicating that this section is currently taking up 41 bag slots

NOTE: The # shown is bag slot usage, not a count of items that might be stacked.