do not disturb recommendation

Where do I recommend some features that Apple can add to the "do not disturb" feature? It would be so nice to expand upon the idea of "do not disturb when driving". I would find it really helpful to have a do not disturb feature for while I am working or working on a project, and have a customizable message, like the one that already exists for do not disturb when driving. This would need to be available to turn on while on your desktop computer as well. You could just have an "I'm busy" do not disturb, which could be modified. It would be manually turned on/off. This would be so helpful, and notifying folks that I will get back to them when I am done with what I am doing would be great.