How to set up cup tie or valid draw rules with 8 teams?

[rmpMarko]

Hello, 

I have a competiton with 2 groups. The First 4 of each Group qualify for quartier finals/semifinals/final.

For the quarters final i want

1A-4B

2A-3B

3A-2B

4A-1B

How do i set properly this? Better with the cup tie in the round itself or the mapping in the stage? I have tried the team order 0,7,1,6,2,5,3,4 but don t think it is the correct way. 

Also, does the draw needs to be fixed on the quarter finals? 

I have tried few Times but not getting right combo.. 

[rmpMarko]

For whoever might need in future i did it. I gave different seeding (0 for 1st,1 for 2nd,2 for 3rd and 3 for 4th)

Then in the quartier final round in the valid cup draw i put keep seeding together 0,3 and 1,2 and add as well to keep teams from prev groups apart. 

[themodelcitizen]

Can also use "cup tie mappings from previous stage" or whatever it's called, along with "cup tie mappings" in the round itself. Then instead of "seeded draw" it's just "fixed draw". Fixed draw allows you to set home teams, a fixed bracket for the whole tournament etc (can see the potential matchups all the way to the final like "team A or team B or team or team D" vs "team E or team F or team G or team H")