Assist Message: can't be marked as read button

Request from:University of Falmouth

Original report: They would like to have a "Mark as read" button for assist messages. Specific example they gave was on Fashion and Beauty Monitor | Fashion and Beauty Industry Database (fashionmonitor.com)

They have an assist message set up that redirects patrons to login, the URL once patrons have logged in is the same as the URL before they log in so they would lik a way for the pop up to not constantly disturb their patrons

Suggested solution by the client: Adding a button that stops the pop up appearing during that session. Adam suggested a "Mark as read" button

Explanation from LL: - Adding a button that disables the assist message during that session