Instance variable values not updating after creating Elements using a function inside a loop

I have got a loop event, to create buttons (objects) dynamically. To create the buttons, I'm trying to use a function. The loop event is creating the buttons, but not updating the instance variables right below calling the function. How can I take care of this situation?

The loop -

The function -

Please help.

Thank you

Instance variables should be set inside the function where the correct instance is picked

The item won't be picked on return from the function. You could pass back the UID of the new object and pick it before proceeding, or, as lionz suggests, pass in the other values to the function.

Thank you both :)