We want to add WMTS, web tile layers and WMS services to the basemap gallery widget in web app builder (ArcGIS Online). Looking through here it would appear that this isn't possible. Is this correct? If so, will this be added one day?
One work around is that the web map that is referenced in web app builder can have multiple WMS/WMTS and that'll carry over as one single item in the basemap gallery but this isn't exactly what we're looking for. Are there any workarounds for this? Is this using developer edition of WAB or the enhanced basemap gallery? Thanks for any help guys.