Hi @lukebhs,
I have some information about creating a project manager role. In QuickBooks, you can manage access roles Company Admin, Primary Admin, and Standard User. If you're using QuickBooks Advanced, you can adding custom users in QuickBooks Online Advanced.
The user limit and access to Project Manager may fall under the Standard Role and Limited to Customer and Sales. For more information about this access, check out this guide: User roles and access rights in QuickBooks Online.
I'm also adding this link here in case you need help managing QuickBooks-related tasks. It has our general QuickBooks topics with articles, videos, and Community posts: Browse all articles for QuickBooks Online.
Please let me know if you need help with anything else or with user roles. I'm here for you. Take care.