repository

I am trying to get a Bonita studio 2021.2 up and running without direct internet access.The Maven repository can apparently be deployed via a Nexus. However, integrating the various connectors (e.g. REST or databases) is very cumbersome. Furthermore, I have not yet managed to connect to an (offline) Bonita Market Place.

I am new to Bonita Platform and just installed Bonita Studio.
I saw some youtube videos which have Repository and KPI menu items. But in my installation they are not available. Can some one tell the reason and how can I find these options?