Pressing a key to skip a greeting in a Message-Only Extension

We have created a new Message-Only Extension (the very popular Coyote Reporting Hotline) and from Day 1 it is getting hit with robocalls, some with Caller ID, some without, and the calls are leaving empty messages, or DTMF tones every few seconds, etc.

When will we have the option to say in the greeting "Press 1 to skip this greeting and leave a message"? It's a basic feature, and it would be a mercy for the guy who has to monitor those messages.