Is your feature request related to a problem? Please describe.
A shaderpack can look very different by changing its config, and it would be cool if we could make presets configs for a shaderpack, but to do that we need to duplicate files, have multiple files for the same shaderpack, change the shaderpack and remake the config for each duplicate shaderpack (and updating these configs when an update for the shaderpack is released is a pain)

Describe the solution you'd like
It would be cool if in the shaderpack settings there was a preset button, then we had the ability to create a preset that we could save, then create another one to have 2 presets, then we could just change presets by selecting the one you want (and updating the shaderpack would be easier because we would only have one file to replace)

Describe who this solution would work
Currently in the shaderpacks folder there is the .zip and a .zip.txt which contains the config
Perssets could be saved the same way except they would be saved as .zip_.txt
which would correspond to the name given to the preset