Did you activate the child theme in the WP menu after uploading the new child theme folder?
Did you activate the child theme in the WP menu after uploading the new child theme folder?
You can do this by going to your style.css file (hopefully your using a child theme), and adding this code to the bottom of the file..
#main-navigation .menu li:hover .adv_categories {
display:...
In answer to your questions:
1 - Yes you can make your own child theme for Vantage if you wish. You can also buy ready-made child themes from the AppThemes marketplace.
2 - Our themes are not...
You can create a child-theme whenever you want... Doesn't effect listings.