What inspired this wish list request? Experimental units with known (fixed) covariates must be recruited and randomized to factor(s) over time so that they are independent (or "balanced") for the covariates. Currently, there is not a automated way to do this in JMP 18.
What is the improvement you would like to see? I would like to see JMP allow covariates in the the Augment Design platform so that new experimental units with known fixed covariates can be randomized to design factors that maintain balance of the existing design.
Why is this idea important? This is important to design studies with important known covariates and staggered recruitment.