I assume you mean accelerated data models, but the short answer is no. Technically accelerated data models are separate from the index and are stored in multiple .tsidx ( time-series index file) files which contain records of the key/value pair in your regular index. Basically accelerated data models just contain pointers to the raw data.
If you would like to store the tsdix files in separate directory or on another disk that is configurable though the indexes.conf.
If you want to store data beyond the raw data I suggest you look at summary indexing