Hi Dian,
I try to answer as well. The reason you don´t face any restrictions is that the license enforcement is not switched on. After license enforcement, you can run your first project for free on Trimble Connect, invite 5 people and host 10 gb of data, other projects will be locked and can be opened after purchasing a license.
You can do this via e-com or purchase it from a local reseller such as a Tekla reseller or Trimble Solutions office.
With commercial license you can have unlimited amout of project and unlimited data. If you wish to invite other users to the project, they need to have a commercial license as well. The rule is the same if you use Trimble Connect native UIs (web, desktop, mobile) or Trimble Access or any other Trimble hard- or software.
I hope this helps.
Jussi