Hello,
I just installed the app, the first look at the permissions page is fine but where are the users and roles management

Thanks

Well, I don't understand the problem. However, permissions can be configured at Customer Groups page in Customers -> Customer groups -> Edit specified Group and jump into Permissions tab or directly on the Configuration -> Permissions page.

I just spin a GrandNode droplet in Digital Ocean and played with GrandNode but I could not figure out how to make my 2 users (Staff and Sales Manager) be able to see all orders from one specific assigned Vendor.
How do you set up these users - Staff and Sales Manager?