[Gmsh] Where are Triangle and Tetgen meshing options

[Todd Martin]

Hi

I built gmesh with the Triangle and Tetgen modules, but in 
Tools->Options->Mesh->General I can only choose

2D Algorithm
---------------
MeshAdapt
Delaunay (disabled)

3D Algorithm
----------------
Delaunay
Netgen

How can I access the isotropic/anisotropic/Triangle/Tetgen options?

Todd