How to add more extensition for view from exist viewer

Hi team, I’m appreciate with all result of team are going, and Automate really impresive !
Can I ask a question, any way to bring all exist viewer from team developed and add more extension to resolve some task action like export csv,excel, validation data ,… with a location bellow.
Any help appreciate, I don’t need we need rebuild everything from scratch, and all developer can share extension to use together.
Thank you.