Copy troubles

Hi,
I will perform a training as trainer in the beginning of November so I revise my classics and more specifically the functions which I do not use every day. I found a trouble when I try to copy parameters from a fixture to an other with mask in a specific destination. I tried 3 commands:
Fixture 1 Thru 4 Copy 8 Thru 11, Enter
1 ) 1 Thru 4 Intensity Copy List 3 Cue 1 Fixture 8 Thru 11, Enter (the one that is in the manual page 157)
2 ) 1 Intensity Copy List 3 Cue 1 Fixture 8 Enter
3 ) List 1 Cue 2 fixture 1 Position Copy List 3 Cue 1 Fixture 5 Enter

Every times it's the fixture from source that is stored in the cue instead of the one of destination.
1 ) In Cue 1 of List 3 I have the fixtures 1 Thru 4 instead of 8 Thru 11
2 ) In Cue 1 of List 3 I have the fixture 1 of fixture 8
3 ) In Cue 2 of List 1 I have the fixture 1 instead of Fixture 5

Am I doing something wrong or is there a trouble in the software?

Thanks
Stephane