Sorry. Dunno how to tell for many things in the content catalog. But I also don't use the content much--only a couple times since version 6 actually.

For charting, I generally use Excel, sometimes PowerPoint, and export as a PDF then bring that in. With a saved Excell/PP file, if and when it needs updated (and therefore XDP), it only takes a couple minutes. While it would be nice to have a "real" charting component in XDP, it likely isn't going to happen as Xara's focus of recent years seems more web-oriented than print design. It is like a real tables component that would benefit both print and web work. The table widget in XDP pretty much sucks.

I wish I had better news or a better work-around I could share.

Mike