I'm looking for more samples or docs than the SDK includes for the various options for adding ui controls to the major sections in the web engine. Specificially I'm trying to figure out how some of the various items described on page 123 like the "popup_row". It's not clear how you use this and what the markup is for it. The sdk docs have definitely gotten better since 2.0 but there are still a few holes in it. Is there src code for the core api's from Lightroom I can use to see what it expects or actually does?
I'm basically trying to add a row with a popup list for the user to select from which I'll bind to a var to be consumed in the grid.