I downloaded the crossed eye sliders by BloomsBase ↓
https://modthesims.info/d/444824/cr...pia-slider.html

These sliders are great but they are individually responsible for adjusting the left eye or the right eye, which makes it difficult to control the two sliders to the same value.
Are there some ways to integrate two sliders into one slider so that I can adjust the left eye and the right eye at the same time by changing the value of only one slider？

Generally, a face is asymmetric, so being slightly off would appear more natural. Anyway, best place for you to start is at the beginning. https://modthesims.info/wiki.php?ti...d_Custom_Slider

Some tools you will need are listed.

Thanks for helping me will try