[Suggestion] More Configurable Rejuvination

[IdrisQe]

Currently the Nether Rejuvination is mostly all-or-nothing minus a few things like vines.
Ideally, I'd like an option to rejuvinate just the Nylium (like vanilla does with grass blocks on dirt) with the other behaviours remaining like Vanilla, so no extra growth. In general, more flexibility in choosing what does and does not grow would be nice, including perhaps a limit of sorts, so if there's [N] of a rejuvinating block (grass, tallgrass, etc.) around, no more will grow, to stop the entire world from ending up covered in them and making everything a laggy mess, but still allowing them to naturally grow.

Also, admittedly not sure if this is part of the feature already, but it would be nice to be able to disable the hitboxes/drops for roots and sprouts unless you have shears, like the option for grass.