can u make so that these options (like the number of columns) are saved in config file?

Would love some ability to set default values and future plans are to have better configurations for per user, per modpack settings but currently its not on the table as some changes to owolib are needed to make such easier to implement.

So I sort of did what you wanted with 0455551, but it primarily allows for the modification of the default values used if a user has not set anything custom.