Build updated from the covariate and variable vector list
buildupatedUI(ui, varsVec, covarsVec, add = TRUE, indep = FALSE)compiled rxode2 nlmir2 model or fit
character vector of variables that need to be added
character vector of covariates that need to be added
boolean indicating if the covariate needs to be added or removed
a boolean indicating if the covariates should be added independently, or sequentially (append to the previous model). only applicable to adding covariate
updated ui with added covariates