In my understanding there currently is no predict.bsts.mixed. For us it would be nice to have this functionality. We were wondering whether there is no predict for bsts.mixed on purpose or whether this is still to be done. Alternatively, we were wondering whether there would be a way to directly include the fine.series cumulator as the response in the ‘vanilla’ non-mixed bsts so that we could piggyback off the predict method for the non-mixed bsts.