i’m sorry to tell you that you can’t do it this way. The reason it is not working is that nonWorkingDays needs to be an array but you define it as a string with the value “[0,1]”
I would suggest you to create a global variable of the type array of int (which you can create with a collection and the basetype integer). Afterwards you can set the default value to [0,1] in the json view.
