Hi!
If you’d like to have full control over which individual observations are included (whether they’re yours or someone else’s, with their permission), the best option might be to use iNaturalist observation fields. You can create a custom field and manually add it to each observation you want to include. Then, you can build a collection project that automatically gathers only the observations tagged with that specific field. This gives you flexibility and precision from A to Z.
Otherwise, a traditional project could also work, it lets you manually add observations directly, but it’s a bit more rigid and less automated than using a field in a collection project.
Hope that helps a bit!