So you are looking for an 8k2 0603 resistor and cannot find one in the library,or you want a transistor that's not in the library either yet you already have something similar there, perhaps the same size resistor but not the right value.
What to do about it?
You could run around like a headless chicken, flapping and being disgusted, telling the rest of the world that the part that you want (and it may only be you that wanted it) is not in the library and you hate CADSTAR.
Or you could simply just make it, new parts do not actually take long to make if you know how PLUS you get to know exactly how that part is configured, exactly what the pinout is and the package size etc. (and by not long, for a resistor I'd measure the time taken in seconds.)
Library creation is a skill that all PCB CAD engineers should learn, either by studying the help-documentation and having a go (it won't bite) or by going on a library creation training course.
So how do you add a simple resistor similar to an existing one into your library?