[Feature Request] Batch edit Channels/Playouts/Schedules etc.

[Andrewpaps]

Ability to select checkboxes beside channels and apply batch editing of channel options to all selected.

As of now, in order to edit an option across hundreds of channels requires going into each channel and changing the same option hundreds of times and is extremely tedious.

Some sort of batch editing across the app would be a huge quality of life improvement, perhaps with some sort of find+replace occuring in the backend.