Gateway Network Sharing Query

We are having few doubts in Gateway Network Sharing Infrastructure. Below is our two use case query. Kindly response if have any idea on any of these!
Case 1:
We have one corporate ignition server. In that we have two plant units. These two plant units has single project running in both units and same for DB, running separate for each project. What is architecture can be used? Kindly help us!
Case 2:
We need one Ignition Gateway server and need to run two different projects and two DB connections. We need to access the that one gateway from different computer more than 2 to 3 three members. Everyone accessing the gateway, made any changes should reflect in one ignition gateway. Same with for project and DB. Kindly suggest us how to implement this? Any blog related this would able helpful!

@PGriffith

Please don't ping specific users looking for help. The good guys read all the posts and will answer if the question is good and they have time. (This is not support. We're all volunteers - including the IA staff!)

Case 1:
What is a "plant unit"?
An Ignition gateway can run as many projects with as many users / clients as you require. What is the problem here?

Case 2:
Same answer.

See the Meet Ignition video on https://inductiveautomation.com/.

Perhaps you should contact IA sales engineering to get a better scope for your actual needs.