Multiply Domain Events Manager plugin for wordpress


I am looking for a plugin that can manage my events, easy to use, drop and drag type of functionality.
I know there is a lot out there but I am looking for more of a crm events management systems.

At this moment I have 4 domains and al these events need to be placed on all 4. I want to be able to select where I place the event, even if it is the same event on the domain of my choosing. So manage all my events for all 4 websites from 1 platform.

All my sites are wordpress based.

We have the following script, but it isn’t a wordpress plugin.
Its a PHP script. If you wish to peek:

Best regards.