Yay! finally got something going by doing the following steps which tie into the earlier thread’s point
So what I did in-editor was to create a newly named folder ‘Dogwood’ and create a new empty level(named ‘DW1’) within that. I then loaded the earlier TestMap level and in the ‘Scene Outliner’ panel selected the items and landscape to copy, clicked main menu->Edit->Copy, reloaded my new DW1 level and ‘paste’ to the new level. I editor viewport playtested the new level and then went through the cook and upload process using the new mod and map level names and it successfully cooked and uploaded(hidden for testing purposes), subscribed and was then able to successfully playtest the new level in-game(local host option).
So to repeat, seems ok to copy level content via the Scene Outliner panel between old and new levels, but trying to copy/rename the folder or folder items seems to result in things never getting cooked/working.
Thanks again for the help,
3ndoflin3