Within your Multi Event App you will now be able to see a link to your registration page beside the "Launch App" button for a particular event within your MEA. If you do not have a registration site associated with that app, the button will not appear.
Is it possible to sync my third-party registration tool with the MEA?
This is possible by tracking a custom registration URL to your MEA. This process needs to be done by the support team which can be contacted here. The register button will be displayed whenever the custom registration URL is added. If you wish to remove the register button for these events, support can delete the custom registration URL to make it disappear.