Temporary Disable Duct/Pipe Network and System Selection
When networks become complex and models become slow, pressing tab to select a tag etc. and then accidentally selecting a network wastes a lot of time.
Option 1 - Alternate shortcut - Individual only:
I propose adding an alternate shortcut to TAB which only allows cycling selection of individual elements and no networks.
Option 2 - 6th Selection option - Network/System selection:
An alternative would be to only use TAB, but allow a selection option (an additional option to the existing 5 eg. select links, select underlay, select pinned etc.). Disabling this option does not allow selecting networks/systems and therefore TAB will only cycle individual items.