OMNET++ simulation for a project? advancement of their models? tips?

Basically, we have a simulation project.

We are suppose to pick one of their example simulation models and make some kind of advancement and simulate and the plan is to gather data to present.

For example the labs used to introduce us to omnet++ is the TicToc tutorial, and the wireless tutorial they have.

What could I do with these, change etc and find some interesting data? change some parameter and see what happens etc?

https://inet.omnetpp.org/docs/tutorials/wireless/doc/index.html

https://docs.omnetpp.org/tutorials/tictoc/

Anyone have similar experience? I feel lost..

Thanks.