Hi @eluohc,
A jQuery Slider value picker could likely be integrated:
There isn’t an easy non-code built in widget for that at the moment, but it is a great idea
The jQuery UI solution would need some custom code to be added. Webflow allows you to do that: Custom code in head and body tags | Webflow University
I recommend to create a test site to get it working, then share that read-only link to get more specific advise to your design
Thanks in advance!
Cheers,
Dave