Currently the only way to override a standard New button on any object is via a Visualforce page, in both LEX and Classic.
In LEX the standard behaviour when one click on a New button is to open up a modal window with form to enter the values of the new record's fields.
When I override the New button with a visualforce page, when in LEX clicking on the New button simply opens the visuaforce page, no modal window.
Does this mean that to replicate the LEX when overriding the New button we need to provide the modal functionality ourselves ?
Thanks, Fernando