I guess you mean "convex and concave lens" special kind of controls which are not included in LV.If so,go step followed:
1,Create the new controls as the standard .ocx file using other tools
2,Copy the .ocx file to the \Windows\system if windows used or \system32 if NT used.
3,Run "register **.ocx(the file you created)" in the "Start->run" to register the new control.
4,in LV,using ActiveX Container to load the new control and chose it's property and methods.
With LV itself you can just customize an existing control with new appearance but with the same methods(I myself think so).
best regards.
