is it possible to have a dff of type number that automatically increment?

Summary:

Is it feasible to have a DFF of type number that automatically increment in Visual Builder Studio?

On the Additional Person Info screen, we have a section of type Multiple Behavior.
I would like to know if it is feasible to have one of the DFF fields(the Unique field) in this section automatically populate with a value.
For example, 1000 for the first record and then increment by +1 for each subsequent record.
This way, each Multiple Behavior record created would have an automatically generated value that increases sequentially.

I have tried to create a variable but i could not figure out how to refer it on the field nor how to identify the latest record to increment.