Collapse/Expand feature

Hello there @tonysingh

Custom Sidebars plugin has no option that affects the styling of sidebars or widgets, as this is sole responsibility of the active theme. Our plugin just replaces the widgets of a given sidebar with the widgets of another custom one, when conditions are met. 🙂

A plugin like the following could assist you on that: https://ww.wp.xz.cn/plugins/toggles-shortcode-and-widget/

Warm regards,
Dimitris