Suggestion - ability to add a layer to default map

[MattCrossett]

If would be great if you could customize or add a single layer to your default Open data site map.See example below
[ATTACH=CONFIG]34132[/ATTACH]

[TimMinter]

I like this idea.  If an organization has a premier geospatial dataset, then offering an option to highlight it on the Open Data site map by default would be useful.