Hi hmc, it isn't necessary to make a single object out of your lines. You can flow any number of objects, just select them all as input into the Flow command.

Curves are a path-like object with a start and end, you can only join a curve to another curve that is touching it at their endpoints to make a longer path.

So you can't join curves together into a single curve object in the type of configuration that you are describing, but you do not need to do that to flow them either.

- Michael

Hi Michael, thanks for clarifying that. I'm coming to this from a vector design mentality where, in Adobe Illustrator or CorelDraw for example, you can join/weld curves together to form single objects.

I've just managed to flow my grid onto a simple lofted surface after toggling the perspective checkbox.

This is amazing!