Show latest Pro Sites visitors in the network

Hello WPMU Dev!

I want our paying Pro Sites users on our multisite to be able to see when they have visited each others blogs.
Example:
If I am a Pro blog user, and visits another Pro blog, they my blogname will appear in a list in the users dashboard of the blog I just visited. I think this feature will make our Pro blogs get more visitors as they can see who has visited their blog lately.

Is this possible or will it require custom development? See attached screenshot. It is taken from a danish network, also using Pro Sites to control this feature.