Aloha Matt,
A guess based on my experience with ggplot2 is that the
auto-naming and saving take place in the functions plot2() and
plot4(). If so, then calling them from Org mode babel blocks will
also get you auto-naming and saving.
I think you're right that you'll need to put each of the plots in
its own babel source code block and then set up the html export to
your satisfaction. IIUC, these are the prices one pays for
working in a system like Org mode which is both language agnostic
and export target agnostic. The rmarkdown/rstudio solution is
nifty, but it is tied to one language and one export target.
hth,
Tom
--
Thomas S. Dye
https://tsdye.online/tsdye
