@nj2 No need to create a complete new one. Generate a new project and comment out the unnecessary modules
for ex: as in the multi tenant structure i suggested dispatcher will be a individual tenant, so you can comment out the dispatcher module in the new generated code and then move the dispatcher code to the individual dispatcher tenant.
In the similar case for UI frontend. We have done this solution for multiple clients and currently working on the same.
In cloud manager you can not have 2 repository projects deployed to same environment with different piplelines. It will overwrite the existing project. You can DM me I can explain you in a better way.