As administrator, you can write a message to all voters currently logged in the app with the broadcast function.
How to use the Broadcast tool:
You can sent short messages, important information or hyperlinks (eg. to a google document etc.) that way to your voters.
To open it click on "Broadcast to all voters" on the top menu bar.
A small window will open, and you can type a message there and sent it.
All logged in voters will get a small pop-up with your message. They can read that popup and then close it.
Broadcast messages are not stored and cannot be reopened.