I've found a lot of articles about how you change the sliders values, but nothing about changing the starting and ending points in the slider...
- Edited by René 'Skumle' Sørensen 1 hour 37 minutes ago
Technology Tips and News
In my personal point, I think it may not be able to modify the staring point for Modified Time to "Last Year" instead of "All".
But we could see the "Last Modified Time" rang value is passed to URL string, we may be able to change URL querystring value via JavScript to make the slider located at laster year position.
Or you may check the following article about create custom intervals in refinement panel, see if it helps.