Manage more than one widget in one sidebar

I have to manage more than one sidebar on my theme project but I only can use ONE widget with WP Favorite Posts.

I already have considered the solution of chrisgagner (very helpful btw) on his post https://www.ads-software.com/support/topic/widget-only-works-on-one-sidebar but I don’t want to have another plugin

Someone found a solution to manage multiple widgets from the plugin ?

https://www.ads-software.com/extend/plugins/wp-favorite-posts/