Applescript and UI Element

Trying to see if there is a better way to select a floating dialogue box menu item. I was able to use apple script to select the UI menu button and use the key codes to scroll up one and then hit the return key. but it seems that it take 8-9 sec after selection the button before in goes to the net key command,![Script|690x161]) is there something I'm doing wrong or is it just the way it is?

Would love to know if there's a script or a better way that would just select the attribute that I'm trying to select.

RX 2