This add-on implements a stack manager for modifiers in Blender. Typically when there is a lot of modifiers applied on an object, rearranging, adding, or removing modifiers becomes extremely difficult -- especially when few modifiers are expanded and few are collapsed.
You can now rearrange, rename, add, remove, or duplicate modifiers and control their visibility all in one place. You can also apply all and expand/collapse all modifiers at a click of a button.
This coupled with upcoming drag and drop features in Blender 2.9 will be a great addition to your workflow.
Modifier Stack Manager for Blender