How can I make one segment of Person SIT to auto populate from a segment of Position DFF based on t

I have an SIT with 5 segments, out of that, the data of one segment is same as the data held in one segment of Position DFF. This has to be picked up based on the position held by the employee.

I have tried using SQL Statement at Value Set level, but upon using the 'fnd_global', it is showing up the value in the forms for all employees as the one held by the person logged in.

I have tried Form Personalization but unsure of if there is a way to call the Positions Table at the SIT form in the 'Action' tab for 'Value' field.