You need to create Product field you want to filter on Input Process Object:
Go to Input Process
Create Two Fields:
This will be a Pick list field which will be having same values as it is in Product Pick list:
There two fields on Input Process Object:
Just add the API name as pick list value in both the field:
1. Input Field will contain: Platform and Family
2. Product Filed already has Product Family just add the Platform Field API Name.
Go to Quote Process Tab:
1. Give the Process name and Save it.
2. in related list
Process Input Object:
Here we are using two fields to filter so create two process input record.
Please Check below Images what needs to be added.
There is a Field in Quote:
Quote Process ID:
So the Quote Process id needs to be added every time:
Create a Process Builder which will add the Quote Process ID whenever the Quote will be created.