Please give a more complete description of what you are trying to do and what problem you are having. It's not clear just from the picture you posted.
I suspect you're trying to use Serial Numbers in the wrong way. Each part would have a unique serial number. Are you trying to create multiple part numbers for the same part?
Sorry,my english is poor.
Yes,Each part would have a unique serial number. But different types of parts used in different serial number generator.Such as: standard parts, purchased parts, manufactured parts, etc.
I want an encoder.
Hope to achieve this function, select different serial number generator according to the list of variables value.
Assuming serial number generator A, B, C's Next counter value are the 002, 0003, 00011
Variable value serial number generator serial number value
If Product value is A then the serial number generator is A 002
If Product value is B then the serial number generator is B 0003
If Product value is C then the serial number generator is C 00011
You will either have to create a custom serial number generator addin or use three different EPDM templates.