Need assistance programming old IPAC

[billpa]

I pulled out an old IPAC this week for a pinball project I am working on. It looks like this one.



Ultimarc has 3 versions of their IPAC utility and I chose the one for IPACs that were made between 2004-2015. In the settings I believe I chose the 28 input version since it appears that is what I have (not the 32 which adds 1A,1B,2A,2B connections).

My problem is I am unable to map any of my buttons to the ESCAPE or ENTER keys. I feel like I am missing something here but the software is pretty straightforward i.e. click on the button and then press the button you want to map it to you on your keyboard.

Any help would be appreciated.