To do that, go to admin console:
Select Add button, on the popup select WMTS and paste the URL
HyperDoc will automatically download the XML WMTS descriptor and show you a list of available map sources like so:
Using check boxes you can now select sources, and add them to predefined sources in HyperDoc. You should select ones that were not added previously – otherwise nothing will happen.
Now, go to main view, create a new object, add Drawing, Add Map, select new service
Map data is now delivered as "background" to HyperDoc Composite Document
Set default view for map drawing
It is possible to set map drawing view as default when selecting document connected to this map:
go to desired Document with map connected,
map loads in full extents,
zoom into desired zoom level,
open Composite Drawing Manager anc click on map drawing,
to use current view as default for this map click on Set Map Extents from view button,
to reset extents to full map click on Reset Map Extents.
Please remember that setting default extents of map:
requires Edit rights to document object and it's content
is versioned normally
is same for all users
applies to instance of map conected to one document (there can be more same maps connected to different documents with different default extents)