If you have your layers hosted in a Tile XYZ tiling scheme, adding layers can be done by entering in the URL for the layer.
Select Tile XYZ as the layer source, giving the layer a name, entering in the layer’s URL, and then set the member permissions. Once finished click the create layer button.
The URL pattern style for an XYZ layer looks something like this:
For more general information on adding layers, please visit our adding layers page.