There are many similar Script
here I summed some X-raym's old script in one.
I found it's handy for me, so I wish it could do some help if someone is looking for it..
it will pop up a dialogue with 2 choices.
Each choices will bring you different results.
For avoiding wrong item selected by accident, I used X-Raym's former codes to do some "filter work" for items selection. So this script will deselect none-stereo items 1st.
also I add a "user config" area at top of the script,
just for you to adjust what u need in many other circumstances..
(dont wry it has been set to "2" already for working on stereo items.)
My scripting skills sux, still learning it..
got some priority project to work on, so I don't plan to work on this further.
oh and here's the video down below: