I had a quick lock at Doxygen today. The question that we should discuss is: **What do we (not) want to document in Doxygen?** Under **Modules** we currently have a list of available `models` and `discretization schemes`. This seems good to me and maybe could get a small update. The newly established `Multidomain simulations` part should also be in there in my opinion. We also list our `Material/Fluid Framework`, which looks good to me. Then we have `Benchmarks and Tests,` which is not really a module in my opinion and could be replaced by our examples in the near future (3.1). **So we could get rid of this.** And then there is `Adaptive` `Assembly` `Common` `Input Output` `Linear` `Nonlinear` `Parallel` where I am not sure if we could combine them maybe. **We used to have a feature list and a parameter list.** **Do we want to have them also in 3.0? And if so, in which detail level?** The last time I tried this, we opted more towards a general feature/parameter list without listing all the possible combinations and variations. Comments?