Questions on loading mesh obj files

Hello

I have a couple of questions on loading mesh files (.obj) files on Neuroglancer and I hope someone can guide me.

Questions:
1) Does Neuroglancer support loading a collection of `.obj` files as a source? I'd like to avoid loading hundreds of tabs.
2) If no on 1), what is the latest or better approach to convert these files into a different file format for viewing?
3) For viewing a mesh, can Neuroglancer configure a Shader control to have UI controls on the opacity and the silhouette changer of the loaded mesh? Attached is a segmentation layer's render control and I'm hoping to have a similar UI. Do you have an example Shader code for this feature?

Thank you,
-m