Working a Joomla! 3.6.4 site and using Chronoforms V5 the customer wanted a dropdown item to start in the middle.
It was easier than I thought. Here is what I had to do in the back end.
In the form designer I selected the dropdown element and added the Options item value I wanted to be the selected it, and added that in the “Selected Values”. The option I was looking for was the 100,000.
I hope this helps someone else out there….