Over at the MSP430 forum a question popped up about multiple markers at a line. Now the main problem is that the marker description in the tooltip is pretty much useless.
As you can see in the screenshot posted there and in the one attached below the tooltip of a breakpoint marker tells you nothing new.

It just tells you the file and the line, and well the file you are in is displayed at the top and the line is just 10 pixels to the right.
So a much better tooltip would be something like: Breakpoint (active)
Or something along that line, something which actually tells you what markers are there and not just there is a marker at that line you are pointing your mouse right now.
And yes I forgot about the Markers view, but still it would be nice to have the information right there at the tooltip.