Is it possible to import the USGS hillshade-stretched map into gaia?

It is extremely useful to me as it reveals terrain in much greater detail than any other map I could find.  Currently I'm finding spots of interest using the 3dep dem viewer, copying the coordinates, flipping them and then adding them into gaia as a waypoint.  This is very tedious with the amount of waypoints I'm adding.  

I spent a lot of time looking for a way to import this to no avail.  I've managed to import older hillshade maps that have very low levels of detail but that's about it.  Is this not something that I'll be able to do or am I missing something?  

https://apps.nationalmap.gov/3depdem/ 

This is the viewer I'm using, hillshade-stretched is the sixth option on the left side.  I'm new to this and it seems to get pretty complicated so any help is appreciated, thanks.