Hi @UlrichA,
Collaborative Work Management (CWM) is a subject of a plugin (Install Collaborative Work Management) which isn't installed in my PDI so I cannot shall you the exact location but if you install it in yours, there should be Guided Setup which is available for most of the features in SN and with that you can go step by step explaining with links and everything and once completed you can mark it to remember what steps are done:
See my example with GS for CSM (don't forget to click on Get started😞
Once you get there it will start to makes sense to you. It's an underestimated part of ServiceNow!
Let me know what do you think about it and if you found it helpful.
