K3b adding to already burned CD

Dear All, I just successfully burned alot of photos of mine with K3b onto a cdrw. It seems it went very well. Now, I just received some more photos that I want to add to this CD. Is there anyway that I can do this without starting all ove.? Can I start a new K3b project , add those photos to it, then burn it onto that same CD without messing up what I have on it already? I guess I am just a newbie at this and the documentation is very scanty from what I can tell. Any suggestions will be greatly appreciated. Sincerely, Marcia