Split within-individual and between-individual correlations in a bivariate mixed effects model in nlme package

Hello,


I'm wondering if there is a way to split between-individual and within-individual correlations in a bivariate mixed effects model when using the nlme package? I'm aware that this is possible in the MCMCglmm package, but I have autocorrelation in my data that I want to account for in the model.


Kind regards,

Susanna