How to use the MultiWeightGen Generator
Create a new Attribute
Select the MultiWeightGen Generator
You will now be taken to the Attribute dashboard.
Input the values for your valueList
After you type a value, press the enter/return key to submit it.
Input the values for your perecentList.
In the below image compact will show up 80% of the time and midsize will show up 20% of the time.