What I had in mind for dealer input is (for example) to have 1N openers opposite GF hands with shortness (no 5M), but to have the dealer alternate so North opened 1N, then south, etc (or better still, some number of times north, then the same number of times south). I'm guessing I can do it by duplicating code so there is a dealer north constraint for all north 1N hands and likewise a dealer south constraint etc, but that seems cumbersome and error-prone -- was hoping there was some easy way :)