Mixing different type of views in single Timeline graph

Is it possible to mix the Casts/Buffs/Debuffs timelines in the same timeline graph?

Background:

If you would like to visually review someone’s rotation you have an incredibly useful view called ‘Timeline’ for casts. In many cases decision on the rotation does not just depend on time, but also on some resources / buffs / debuffs etc.

While it is possible to enrich the view with additional graphs via Decorators - and it works fine for Resources for example -, but for Buffs/Debuffs a shared Timeline view would be much more powerful.

PS: First time poster here, I am very much impressed of the Warcraft Logs website, very powerful tool, big thanks for the creators/maintainers.