How to add Tilemap from JS Object

Hi, I’m working on a game with multiple levels and I need to load more then one Tilemap JSON. The problem is that the system in which I’m working does only support to save one JSON file. Now my question is is it possible to use a JS Object as input for the Tilemap?

That is what I was using for a single file. Is there a variant?

game.load.tilemap('name','url to json', null, Phaser.Tilemap.TILED_JSON);

Thanks in advance for your help.

game.load.tilemap('name', null, {/*tilemap data*/}, Phaser.Tilemap.TILED_JSON);