In newest Singularity viewer v 1.8.3
1. Make normal prim (or multi-prim linked) object. I'm going to make my Parrot on a stick prims become mesh!
2. Right click object: Edit --> More --> More --> Tools --> Save DAE
(save to your computer)
**A tip when you are uploading mesh, be sure to check the generate normals, under the upload options be sure to upload textures, there are 2 place to select on the upload options, click them both. Then click calculate weight & fee, and then you can upload. It will automatically go to your object folder.
Bring it back as a Mesh:
Look in Inventory for the object.
Rez it in-world. It should now be mesh.
Try it and comment about the process and outcome!