This is a personal project.

Cam-Manager is an add-on to improve efficiency and organization with multiple cameras. It empowers you to quickly present your work - from product design to modeling/texturing work. It is a powerful tool to tweak the composition and framing of your artwork or when working with multiple image planes. The addon includes different overview panels (in the 3d view and scene properties), a pie menu for quickly tweaking the active camera, different tools to assign and adjust camera-specific resolution, world materials, render slots, and more. Further, it allows you to customize the shortcuts to your needs.

BlenderMarket: https://blendermarket.com/products/cam-manager
Gumroad: https://gumroad.com/l/Cam-Manager
Artstation Marketplace: https://www.artstation.com/a/3688690

Documentation:
https://weisl.github.io/Cam-Manager_Overview/