Thank you gentleman for your replies. Found it most enlightening.
Now 1 more question on a similar basis.
Would it be possible either in load script or in conditional (Though in a list box i dont see a conditional) to pre-define The FIELD Namely in below FinYearPsemas :
To change based on the 'pse' variable in previous post to the below specifically on a list box object:
Your insights are welcome.