How to enter multiple repeating measurements in mixed model

[#1]

I want to construct a mixed model in JMP pro 17 (on windows) with multiple repeating meaasurements as x-variables, but I'm only able to add 1 variable to the repeated structure window. Can someone help me how to fix this?

[#2]

I believe only the 4 "Spatial" structures allow for >1 variable in the Repeated portions.