Many of my projects are not huge assemblies but also not single body components. But somewhere in between. Parts with many features that will make the timeline very long.
I know it shortens when activating a component. And I know about grouping features. Still many times there are features between components and I need to activate everything.
For me it could come in handy to be able to pull up the timeline frame to see some more rows. Just that little more overview.
