At first I was daunted trying to find a program that would allow me to simply copy and paste registry keys.
For whatever reason, a program we used was not seeing the registry info in HKLM and it needed to be in HKCU. After searching for a program that would allow me to copy an entry to another location I found an ultra easy way to do it manually.
There is no need for any special software. This is a free method you can do with a text editor:
0. BACK UP THE REGISTRY
1. export the key you want. it should be the entire entry.
2. Export something NEAR what you want to put it.. In my instance it was HKCU\Software\
3. Open both entries in notepad and copy the path you want to move it to.. paste that path over the path from the original exported key
3B. Watch the capitalization! Coming from HKLM it was "SOFTWARE" but in HKCU it was "Software" -- make it match what the one you're importing into expects..
4. Once you've edited your original reg key with the correct paths, just save it and and then open it, merging it. It should appear in the correct location.
That's it! If you want to delete it, just remove it from the registry via regedit