This is probably a dumb question but I cannot figure out how to combine multiple lines, endpoint to endpoint, so that they become a single line object. I see how you can use the snap-to-endpoint feature to get two line objects to share the same point, but I want to combine them so selecting the single resulting line and changing its style will change the style of all the line objects that make up the new single line object, moving the single resulting line moves all of the combined segments as a single object, etc.

Hope that make sense,
Steve C.

Using OmniGraffle Pro 4.2.2