If you are a sinfar supporter, you may view and create your own player house resources at the following location: https://nwn.sinfar.net/my_res.php. All player-house resources are prefixed with p_ and a per-player unique hex code which is up to and usually 4 digits.
Resoruce names are limited to 16 characters after the required prefixes and hex code, most players will be limited to 9 characters of uniqueness, so careful naming may be required for larger projects.
Custom conent that can be managed this way includes:
Resources can also be uploaded using the Player Home Uploader, by selecting the "Include Blueprints" option. Note this will overwrite any edits you have made using the web based tooling.