Besides the properties like notes and URL I would like to have a way to set up a flag for each element. Lets say I'm designing a website and I want to keep track of which pages are already done, which ones are in construction, if there is a problem with one and the team can't continue, etc... This flags can be custimizable to any names you want to specify. And the color of the item under this flag will change so you be able to see where is your attention required without clicking each item and see the notes.