This mod adds 3 shortcut keys:
SHIFT-I : Highlight infinity pipes, infinity chests & electric energy interface.
SHIFT-O : Highlight lines of pipes that aren't connected to anything.
SHIFT-P : Delete lines of pipes that aren't connected to anything. (note, the pipes are not returned to the player's inventory)

Useful to remove excess pipes when building a liquid bus.

Inspired by the Orphan Finder mod.