Can shader graph materials be used on instanced meshes?

When I try Graphics.DrawMeshInstanced with a shader made in the shader graph I get the error: "InvalidOperationException: Material needs to enable instancing for use with DrawMeshInstanced."

Shaders made in the shader graph don't HAVE an "Enable GPU Instancing" toggle.

Is this possible at all? If not, will it be possible later?

Ok, having tried out each type of graph:

PBR Shader-- Can't be instanced.
Unlit Shader-- Can't be instanced.
HD Lit Shader-- Can be instanced!

Does anybody know a way to combine the speed gains of an unlit shader with the speed gains of instancing? Being required to trade off between the two is driving me nuts.