Joining AE Missions together into a so called arc

I sure don't see a way to bring separately created missions into an arc by file name? Surely its possible to take 2 separate locally saved missions and join them into an arc ?

I don't want to have recreate things unnecessarily.

Thoughts?

Thanks

copy and paste

the files are in your city of heroes folder in a folder called missions.

it's just text in there - you can copy and paste within the file or from one to another

Exactly what I required, I think.

Its not showing any errors anyway.

Thanks