Create custom template for front page editor in events+

Hi guys.
I'd like to let the user fill a pre-configured form when creating a new event

By letting them create a layout like an open post is too overwhelming.
I need to give a form where the user adds an image, then another form for a description text, etc.

Those fields would be already in place with its own template html/css done, otherwise the event will probably have an ugly design with no pattern at all.