I have a new suggestion for multiple IP-ranged or large networks.
Every IP group still main window I think every range can be collapsed like each computer '+' sign or another sign or icon.
It would be difficult to implement as the current implementation assumes that devices are at the root level in the tree and shares folders are at the second level.
Anyway, if you want to hide some ranges from the flat list of devices, you can simply add a filter with IP address ranges of interest.