Yes, I have found this too, but it gives me errors when I use it.
This config:
apps.tk-multi-publish2.location:
type: dev
name: tk-multi-publish2
path: {CONFIG_FOLDER}\plugins\tk-multi-publish2
Results in:
...AppData\Roaming\Shotgun\folder\p782c167.basic.desktop\cfg\install\core\python\tank_vendor\yaml\python3\parser.py", line 439, in parse_block_mapping_key
"expected , but found %r" % token.id, token.start_mark)
tank_vendor.yaml.python3.parser.ParserError: while parsing a block mapping
in "...\Shotgrid\test-git-config\env\includes\app_locations.yml", line 52, column 3
expected , but found ''
in "...\Shotgrid\test-git-config\env\includes\app_locations.yml", line 54, column 24