We would like to manage a project structure where individual projects can take a part in a top level project structure sharing a single resource pool. It should be possible for individual authors to work on those individual projects, or possibly the same project, at the same time.
We are familiar with co-authoring in excel, word, etc (through sharepoint) and it works fine. We have licences for MS project 2019. But we can't seem to find a way to set up co-authoring, or find any definite statement as to whether it is even possible with project.
I have seen "Microsoft Project Server 2019" and "Project Online" mentioned, are these different products and are these needed?
Any guidance or info about this would be much appreciated,
Project Online is the Azure based version of the good old Project Server for on-premises. Both are so called Enterprise Project and Portfolio Management Tools. If you are looking for co-authoring in sense of concurrent editing, you will not be satisfied with both of them: You must checkout and checkin a plan for editing. If you are looking for true concurrent co-authoring you should take a look at the oncoming new Project Service. It explicitly allows co-authoring. Nevertheless it starts with very limited features, it is supposed to grow soon and fast.
https://www.microsoft.com/en-us/microsoft-365/blog/2018/09/25/a-new-vision-for-modern-work-management-with-microsoft-project/
https://techcommunity.microsoft.com/t5/Project-Blog/A-letter-to-our-Microsoft-Project-community/ba-p/260891