Just updated to a better solution 
You might not need the “DSCore” part, this is because I have some packages installed that also uses the “String” name and you thus have to specify which package you’re using.
EDIT:
Tip: adding an empty string to a number turns it into a string. Try this:
x = (0…12)+””
Move the contents of the variable into the spot it is called in the function. This quickly turns into the ‘black box’ which is hard to revisit though.
The unchangeable nature of it is why I want to use it. Next to that, although exactly a problem in this case, there’s more calculation time.
Using the SpaceAnalysis package (released recently) might be a better option now.