when we place PHC fruit sapling (such like Apple Sapling) it should be replaced to dynamic trees apple sapling. (1.12.2)

you can change this on the "config" files

theres no such config in your mods config file. if you mean dynamic trees configs, i already enabled that.

I'm not a dev, just a player trying to help. At least in the 1.16.5 version that's a line on the configs that do exactly this, but I don't know if it works with the addons os just the main mod (vanilla trees)