Assigning ‘Add Submissions’ rights for specific users

Hello
I want many users to collect data with requiring authentification.
I read how to do by setting poperties of my account, and parameters for sharing my project.

But i wonder if it will be possible to manage 70 (seventy) different users accessing to my form or if it will be too much ???

Thanks
Michel

Welcome back to the community, @sccf340! 70 users should be manageable.