Using descriptions to pass information on the main screen to your team
The description field is an advanced option in the ECH that allows you to enter text that appears directly on the card. Because it supports markdown it can be used to add a table of phone numbers, images or even videos.
See the screenshot below for what this might look like for an activity:

In the app it should appear here:

A second example here:

If you really want to be jazzy EventR supports animated WebPs !