I have started working on activity X-Y or scatter plots, similar to the new histograms. Should have something basic up and running soon. Basically choose X plot, Y plot and you get a chart (e.g. power vs cadence). Will also likely add a Z plot for “size of bubble” for the scatter.
If you have any ideas for this feature, please post on this thread.
This has turned into custom activity heatmaps. There isn’t any mouseover yet but it is basically working. You can only see this if you are a supporter and have ticked the “Enable beta features” box at the bottom of the /settings page.