One trick that works in some situations  is to use ERC to slave one translation to another. For example slave the ytran channel to the ztran channel, so that when you spin the zTran dial the part also moves in the y direction. You can vary the amount of ytran for a given amount ztran by changing the value in the 'deltaAddDelta' line. For example placing the slaving code below in the ytran channel would cause the part to move one unit in the y direction for every four units moved in the z direction.  

            valueOpDeltaAdd
                Figure 1
                SomePart:1
                ztran
            deltaAddDelta 0.25000