@Corjan-Meijerink, I don't know why, but I have the impression that I am not really able to tell what I mean!
I am NOT talking about Groups.
I am NOT talking about automatic adding tracklogs to events.
I know that organisers can add tracklogs manually to events. This is absolutely fine.
When I do this, all participants can watch these tracklogs including photos.
BUT: They have to use the WebSite or Route Lab which is quite complicated for the participants of envent.
The organiser can see his tracklogs also in the App under "Tracklogs" under his "own" Tab.
So my SUGGESTION is that participants of events can see the Tracklogs of events also in the App under "Tracklogs" under a NEW Tab "Events"
Same feature already exists in the App for Routes!
The possibility of showing Tracklog in the App (only own Tracklogs) is also alrady existing in the App.
The only missing part is to include the "Events" Tab under Tracklogs!
I think Tracklogs with pictures especially make sense for participants of events. Therefore I think this feature wourld be really usefull.
Hope I could explain what I mean 
Many thanks.
Tom