How to resume training a Classifica​tionBagged​Ensemble object with new data ??

I built Random forest for classification using fitcensemble and trained it with some data (data1) and got ClassificationBaggedEnsemble object (ens). Now I have some more data (data2) and so I want to resume (continue) training this ensemble (ens) with this NEW data.. Can I do so? if yes, then how please?? Thanks in advance..

[Nada Sherif]

I need to update the trained classifier (treeBagger or fitensemble) means continue training on some new data without overwriting the previous training..