Update: Latest version of the user guide can be found in the Connect Product Updates subpage:
There is a new updated version of the user guide for Trimble Connect for Browser application (also known as Trimble Connect for Web). Updates include a description of the new Connect 3D Viewer application in Chapter 8. You can find the new user guide attached to this blog post.
Please note that the description of managing licenses in Chapter 1.1 concerns you only if you are using Trimble Connect together with the Tekla Structures application.