[graph-tool] Tool tips / interactive drawing output

Hi, First of all, thanks for a great library with great documentation. I'm just starting with graph-tool but so far it looks really nice. I have previously used the now unmaintained BGL-python bindings and for me it is good that graph-tool seems to have some similarities in its API. My question is: I often have large graphs where I cannot display vertex labels in the output for reasons of space. I would really love to draw these graphs to a format where I could hover with the mouse to produce tool tips to show vertex labels, etc... Is this possible? Thanks, John.