Utter layman question, but how difficult / time consuming would it be to expand the package menus with an option to select and update based on selection?

[MarionCobretti]

As a not-programmer, I can't begin to guess at how much something like this would take to implement, but considering the number of emulators in Retropie, the fact that some are only available as source, and how long it takes to install or update some of the latter, I thought that the option to select specific packages in the sub-menus, and only update those packages (or the unselected) would be a lifesaver in many cases.

A mockup of what I mean:

I think this could be especially useful in the experimental menu, with its numerous mixed packages, and the possibility to add so many more (like the Extras, Extras Unstable, OpenBor6, etc., etc...) That way one could e.g. only select the packages with binaries available (the Experimental Menu lacks the "Update all from binary" option - and it also seemed to me that if you chose to "Update all from binaries" in the other menus and there was no binary for a package, then its source would be used for the update, greatly increasing the total update time), or select only Mames, etc., etc.