Set up an event calendar for your grid... Do you want an event calendar? This calendar has many different colors, styles, and skins. You can easily find a look to match your grids theme. You can also allow multiple users the right to post events with their own separate password, and you can approve or not approve events as you like. To everyone else who is not an authorized user the calendar will be read only. It has recurring events and many more features. Get it here: https://github.com/sproctor/php-calendar/archive/refs/head...
To install it unzip it to a sub directory of your web server and run the install to set it up. :) It's an amazing event calendar and runs flawlessly. :D