Fan with Repeat & buddying

Hello,
I have a matrix of 64 PAR64, 8 lines of 8. They are numbered horizontally from left to right and top to bottom.
I select 1 thru Enter.
- If I use a Buddying of 8 with a Fan Centre and the wheel Offset, I have the same result as X thru 0 Thru X, horizontal lines from center to top and bottom
- If I use a repeat of 8 with a Fan Centre and the wheel Offset, I have vertical lines from center to left and right. But If I use X 0 thru Thru X (with Reapeat of 8) I have not the same result and I havent found a way to reproduce it wit a set option. Even with a repeat of 4.
What is my mistake?

Thanks
Stephane