Situation: Large amount of filters - 100+ and rising.

Optimisation:
- Grouping filters
- Search filter properties, like labels, addresses etc.
- Sorting Filters, by name
- Filter Duplication, Copy Creation

Example:
Protonmail Label created hundreds of years ago, not recognisable anymore, possibility to find out which filter uses that label important for proper maintenance. Deleting the label obviously not an option.

Have a great day, Proton team!