It's great that you have included the Design Templates in OpticStudio. I have a copy of Zebase from about 2005 which has some of the same information. The new included version is better.

But there is one aspect of Zebase that I miss. The book that came with it included a table of contents. This table was organized by design type. If I was looking for a microscope objective I could go the that section of the table and quickly scan through the titles, which generally gave magnification or NA, and find a design close to what I needed. Other sections included 'Double Gauss Lenses' , 'Petzval Lenses', 'Telephotos', etc. This was so useful that I scanned the table of contents to a PDF and put it in the Zebase directory.

I don't find the search criteria in the current Design Templates very useful. I would ike to see design types added as a criteria, so we can quickly locate a list of designs of a particuar type. 

Kind regards,

David