Select Manual Channels by User

Hej Folks,

is there a way to select manual channels depending on the user who brought them up?
For example I´m programming cues on the main and my colleague is doing presets on the backup and now I want to update only the channels I manipulated to my Q or he just want´s to grab the bunch of fixtures he has been working on. Is there a way to do something like "Select-Manual-User1"?

Thx in advance!