If you do a backup of a show which has Comment Macros in some Cues on one Hog Console and you want to import this show on another Console you must set the ID of the second console to the same value as the first has.
If you do not do that the Comment Macros will not work anymore on the second Console because the import mechanism does alter all the Macros and appends a "h" to all. The number is the ID of the first Console.
I do not see the sense behind this except you want to control the first Console with the second one connected via network.