What do I need to do for my Parent/Child project to compile with this Search option box checked by default?
I answered my own question.
I neglected to say it was Responsive HTML Output.
Mark this false. when generating the Parent.
Posting it here in case anyone else is as blind as I am!
Thanks for posting your own answer. So often people do not but and the next person along with the same question does not find an answer.
Please see Where to Post at https://forums.adobe.com/community/robohelp Generally it's best of ask in a specific forum. I will move this post to HTML5 layouts.
See www.grainge.org for RoboHelp and Authoring tips