Blender GIS -- Higher Res DEM Servers

Hi Folks:

I am playing with BlenderGIS – I have it working, but I would like to add servers to it for higher resolution DEM images – Can someone help me get it figured out?

Thanks
TIM

Specifically, what I am looking for is the abreviation / symbol for the higher resolution datasets – I particularly want the 1 meter if its available for my area or the 1/9th arc second set –

The template is
https://portal.opentopography.org/API/globaldem?demtype=SRTMGL1&west={W}&east={E}&south={S}&north={N}&outputFormat=GTiff

im looking for the codes that go in the demtype field