Lock only part of code for block

I'm wondering if there's a way to only lock part of a block's code- in this case, it's blockstate file. Essentially, I've giving it variant textures if it's waterlogged or not (it's custom seagrass that can also be placed on land). I've already got the two models set up, and I have the json code ready to put into the blockstate file, however, I don't want to lock it if I might go back and tweak it later.