Digital Ocean DNS extension Moving domains to default DO Project
At the moment, any domains created in plesk and sync'd to Digital Ocean get put into the default project/container. There is no way to specify the destination project.
If you then go into Digital Ocean and move the domain to the correct project/container and then go back to plesk and make any dns change and click update, it resyncs to Digital Ocean and moves it back to the default project/container.
This means that Digital Ocean DNS extension for Plesk currently does not support the usage of a project different from Default in DigitalOcean. that makes organizing things harder and it would be really helpful if such a feature gets added to the extension.

Thank you for your input! We will consider this functionality in upcoming releases if it becomes popular.
Everyone, please continue voting for this feature if you consider it important.
-- SH