Can we have data-path at bucket level?

In Couchbase the data path is configurable at node level using node-init-data-path. However for ssd based deployment, if we want to take advantage of multiple disks, can we specify the data path at namespace level?

If not then, is there any way to configure multiple ssd disks to same namespace (similar to what we have in Aerospike where multiple disks can be attached as storage )