How to export cad step / iges

There's a secret trick to export CAD within a PRG routine to an IGES. 
Click File>Export>Part Model> then click any of the options (AS3, STL,etc). 

Then, a browser window will appear. 

In bottom right, change the file format to IGES. select your folder location, name it and click export.

Boom.

I've needed it because my organization doesn't have effective configuration management for our customer's cad data.

I have those same options as well, no option for IGES.

I do see File > Export > IGES though. Does this do the same function?

Strange, I'm using 2018R2.
--Maybe Hexagon caught on and nixed it on newer rev's?  "Undocumented enhancement"
--Maybe it's part of license permissions? IDK

Strange, I'm using 2018R2.
--Maybe Hexagon caught on and nixed it on newer rev's?  "Undocumented enhancement"
--Maybe it's part of license permissions? IDK

I just so happen to have 2018 R2 installed and I checked there, it does have this option in the drop down menu. So it does seem to be version dependent.