the features Bradamante requests are already in that editor i’ve worked on.
code.google.com/p/panda3d-editor/ (get the svn version)
- replace, modify egg textures & texturestages
- add all kinds of nodes into a scene (particlesystem, models, lights, and more)
- add shaders
- height and texture paint-geomipterrain (seems to be broken with 1.7)
- place lights, sounds
the project was to much to handle alone, so i stopped working on it after several months getting no significant feedback of ppl willing to help working on the core functionality.