Ok, you can collapse a group to reduce seeing that when scrolling through the nodes.
My subflow list is getting quite big.
I collapse it and it is good.
But then I search for a node.
The node becomes visible and I drag it into the work area.
I then close the search and........ the subflow group is no longer collapsed.
Not a big worry, but could it be done that when you collapse a group it remains collapsed until you expand it?