Before having your event put on the home page, please ensure that you have custom Thumbnail image saved to the event and it's also recommended to add a few headliners to the Lineup field.
If you do not have permission to add Triniq to the home page then please contact our support and we will arrange to have your event promoted through our official channels if it has not been already.
Otherwise, if you do have the permission, you can access the desired event via Events > All Events admin menu. Once you are on the edit event page scroll down, check the Is on Home Page checkbox and hit the save button.