The activity detail page now uses tabs for navigation instead of sub menu options on the main menu. This is more inline with how the other pages work and you can now add your own tabs.
The list of tabs is stored separately for desktop, tablet and mobile devices.
Use the “Charts” button to select charts for the tab. These are stored per-sport.
Use the “Edit Tab” button to rename and move tabs.
Really loving the new navigation, great job - thanks! 
can you add the option for another timeline? This can be very usefoul for me
this is awesome!
Thank you
UX coherence at its best. BRAVO! Love it.
Another step forward! I assume the “Settings” page will be the next to receive tabs!
Great, and it’s just getting better and better!!! 
I like this change, everything is more clear, now is more easy see all data
I am really speechless
This is getting better and better 
This is a really nice improvement. Thanks!
Cool, I was suddenly worried that this data was gone, good I found this post 
I have been working on that all day. It’s very old code right from the beginning of the project so it’s taking a while. Should have something live on Friday.
I have added a timeline option to custom activity tabs:
The selected traces and interval fields are per sport (like the standard timeline tab) and per tab. So you can have different traces on each tab.
Would also be great to have the option to create different intervals on the secondary timeline.
Ex. If I do a 3x(30/15x13) workout, I can have the 30 sec and 15 sec intervals on the primary timeline, and the complete 3x(9m45s) interval on the secondary timeline.
