Tom it's obvious that you put a heckuva lot of work in putting this together
The support chart is generated directly from the code during a build. It represents exactly what each driver's code supports in terms of features.
In fact looking at that table, there are a few columns there whose meaning is not obvious. Might I suggest a legend to describe some of these terms?
Mouse over the column heading and it will give you a description.
However, "mode" is not what you're looking for. Tom added a new field for the clone mode, which will be in the support chart for tomorrow's daily build.
Note that the support chart is really not meant for end-users, but could definitely be used by documentation writers to ensure that what they write matches the code.