Reprogramming Nanites, Can we keep the programs stored? Options

[PlatonicPimp]

OK, so I just took a look at the rules in augmentation for reprogramming Nanites closely. I'm thinking of a character with some awesome hard nanites with a nanohive (maybe the wild card edge, not sure). The rules require 24 hits on an engineering (nanotech) extended test with 1 hour intervals to reprogram the nanites.

Here's my questions: once the nanites have been reprogrammed, do you need to do it again to put them back to their origional function, or can you just switch them back? Also, once you reprogram your nanites, can you save that program and load it back up later without having to make the test? If so, can I just purchase the appropriate program? At what cost?

My personal thoughts are that the program to execute the nanite's function can indeed be saved, once you make the test. Thus you would be able to just switch between nanite functions by executing the script you wrote from your commlink. This would let you switch between all funcitons easily once you've done it. And yes, you can buy those scripts pre-written, and the cost is exactly the same as the appropriate rating of the nanite's you are programming the wild cards to emulate.

Thoughts?