Config
In saves\YourWorld\serverconfig there is a file called beautify-server.toml. This is the only config you need to edit.
Obviously, you will have to navigate to your World Folder, not "YourWorld".
When you open the file with any Text Editor (Windows' "Editor" is enough) it should look something like this:
Do not edit any lines with a "#" in front. What you need to edit is searchRadius and opensFromRoot
The searchRadius determines how many Blocks away from the root block will be opened or closed. A searchRadius of 6 would search 3 blocks to the right and left and 6 Blocks down.
If opensFromRoot is true, the Mod will search for the Blind that is the topmost Blind of the Blind that has been clicked.
For example, if you click the Blinds at that Block, they will close from the top like this:
The value of botanistSpawnWeight dictates the chance of a botanist house spawning in a generated village. The default value is 2 but you can change that value to your liking. Personally, I wouldn't increase that value. With the default value I've seen a house generate in more than half of the villages. Increasing the value though, may lead to multiple botanist houses spawning in the same village, so be careful.