For comparion, create a file called ReplyPlusRemapping.txt and put that in the logged in users home directory. This can be accessed by putting %USERPROFILE% in the address bar of an explorer window.
The contents of the file should have a line for each keypad. The first part should represent the HEX address of the keypad (usually contained on the sticker on the back of the keypad. After that put a : and then the number that you want that keypad to represent. For example:
055727:1 055728:2 0595B9:3
For ECD, place this file in the C:\Program Files (x86)\Expert Choice 11.5\Fleetwood directory
KeypadAssistant.exe -Display true -O c:\temp\keypads -KeypadMappingFile C:\Program Files (x86)\Expert Choice 11.5\Fleetwood\ReplyPlusRemapping.txt