In the latest Dynamics CRM 2016 (online trial version), under Project Service > Projects > test project
There seems to be a possibility to add documents to the test project
But when we go there, it shows the below error:
We as a laymen, assume that it would allow us to do some kind of file upload.
I'm pretty sure that's the SharePoint document area, it will require configuration to work. Integrate Microsoft Dynamics CRM with SharePoint.