I just discovered the feature where TTree::Draw uses MakeProxy to read macros, e.g.
I can already think of a few handy uses of this. One thing that doesn’t seem possible, however, is drawing to a multidimensional histogram with this feature. Could it be possible for a macro with a signature
to be used to draw a TH2F? Additionally, could this feature be used with TTree::Project? (which appears to just produce a string and passes it to TTree:Draw).