add shard to index

[Radim Kolar]

i am reading this: http://wiki.apache.org/solr/SolrCloud section 
Re-sizing a Cluster

Its possible to add shard to an existing index? I do not need to get 
data redistributed, they can stay where they are, its enough for me if 
new entries will be distributed into new number of shards. restarting 
solr is fine.