Describe your idea

Island generation can be offset on the X and Z axes already. The ability to offset templates by some Y-value would allow for islands with different template heights to have the same ground level.

For example, I've built these two islands for my pack:

They both have different total heights, but I want them to both generate with the ground level at y=63.

Your idea is a template specific y offset, right? So, a bit different compared to X/Z offset.

Yeah, template-specific y-offsets are what I meant.