Blank cues recalling

I am transferring hog 2 files into Hog 4 pc.

I have programmed many (500) blank cues with cue names, numbers and midi timecode information, I now need to add some dimmer information to be able to add fade in and out times.

Can anybody tell me the process of recalling a blank cue, then adding programming information so I can go through the list adding fade in and out times.

Is there a way of adding programming information into all the cues in a list in one go?
Thanks in advance.