By default, adding a gallery to your AGOL home page displays 4 maps/apps, then you have to hit the buttons on the right or left to view additional maps. I was wondering if there is a way to add either a second row to the gallery (as it is displayed on the homepage) or add a second gallery to the description. I thought I'd found a way to add the gallery to the description (Embed a Group of Maps), but it appears you can't use iframes in the description box. I've also seen article such as these which explain how to change things such as the background color or arrow buttons of your gallery. Is there a similar way to change the size so that it wraps around to a second line? Thanks in advance.
Currently, the ArcGIS Online home page does not have the ability to add a second row for Featured Content. We'll add that to our wish list and keep you updated on this. Thanks for your feedback!