Then we have a function named V.We make two variables in test plan named A1 with value kilobytes and N with value 1.

Then we make a function

${__V(A${N})}

Then we add few more variables like A2,A3,A4 etc with values K2,K3,K4 etc.

Then we can print any one of these values by using a random no generator.

${__V(A${__Random(2,5)})}