Saving a mission under a new name really should save all the items in the mission folder, as it is now you have to "Save As", then go into Windows explorer and manually copy all the items over.
- Legacy ID
This is a massive pain in the ass. I've been having to copy and paste my mission folder and go in with Notepad++ to manually edit description and mission.sqm files in order to make variants of the mission. Gets tedious when updating the core mission.