jremington:
You will need to improve your coding skills, so that you can add additional tags and anchors to the library (or write your own library).
I ended up looking at the documentation for the library and I adjusted the library to have static addresses such that I can add tags that will be labeled 1,2,3 and so on. In the end I realized that my issue wasn't with the code, it was that my DWM1000 units weren't receiving enough power. Once I fixed the power issue in my circuit, I was able to run several without much of a problem. If anyone else has this problem, it can helpful to go into the library and change the resistor type for the rst pin to a pull-up resistor.