Hi Folkert.
I'm not sure of the "other tool" you of thinking of? I have used a small DP2XX display as a service tool to read and write to EE's and also to log info.
I included a extra 12 pin connector on the BUS. I really wanted to avoid starting up a laptop, connecting a CG150 etc.
The EE have a Boolean read and write function for this purpose.
regards Neil