Permanently show MarkerTip or add HTML to marker legend

[vistree]

Hi, I am searching for a way to permanently show infoboxes with image and hyperlink on a map. E.g. on continent map I want to show a permanent infobox (permanent tooltip) with a small image, some keywords about the country and a hyperlink to an external page. This way I could use the map as a navigation menu.
It seems that currently region labels are plain text only (so no way to add

, img and href).
I thought using a data series - but again, it seems that there is an attribute image to add a single image but now way to add a div with html content.
The only elements allowing html are the Tips (regionTip and marker Tip) - but there seems no way to put them permanently on a static position.
Any idea on how to implement the HTML info boxes (tips)??