Selecting "Expand Summary tracks and Close Others" should remove other tracks from view and not cause all sub tracks from not being shown unless reselected. You just need to close the motion track is sufficient, not the motion layer, not the gesture layer, not the Torso layer, not the Head layer, not the left LArm layer, etc.

I selected Expand Summary tracks and selected Close Others for the Constraints track.
Now I want to edit some motion layers and everything was unselected.

Now I need to reselect every track again. This takes away any convenience of using that feature.