Would love to be able to control when, where and how much the various items appear. Particularly the Gravestones which appear to be everywhere in the nether.

This was with BiomesOPlenty-1.7.2-2.0.1.887-universal

I'm not to keen on this since it can add up to ruining the design of the biomes, sets the precedent for "configurable everything" whiners and adds additional maintenance every Minecraft update.

If something like this was to be done, it would probably be when everything has settled down update-wise. The extra maintenance is the most prominent factor since the other two, whilst very annoying, can be endured.