Unless I'm mistaken when making a project you can only select one default image layer (Bing, Mapbox, Esri, Maxar or custom). However I'd quite like to be able to provide an overlay layer (in this case OSMUK Cadastral Parcels) to be enabled by default too.
Someone in HOT's tech team may know better but I think it is not possible to enable any of the "Overlays" layers for loading by default in Tasking Manager.
Unless I'm mistaken when making a project you can only select one default image layer (Bing, Mapbox, Esri, Maxar or custom). However I'd quite like to be able to provide an overlay layer (in this case OSMUK Cadastral Parcels) to be enabled by default too.