Plugin request

[pilou]

I believe that Clean Up repairs broken lines
Selection Toys maybe find only line alone
Loose geometry to group by Chris Fullmer maybe can help

[sdmitch]

Here is a "one liner" that will select all the edges that are not connected to another edge or are only connected on one end.

m=Sketchup.active_model;e=m.active_entities;s=m.selection;e.grep(Sketchup;;Edge).each{|x| s.add x if x.start.edges.length==1 || x.end.edges.length==1}

[pbacot]

ThomThom's Edge Tools has a couple of tools to help close gaps.

[Chris Fullmer]

How is "stray edges" different than what you need? That is my favorite fo what you've described. Some tools do a good job of auto extruding edges, those can be super useful. But for just finding those edges, stray edges is awesome!

Chris