Yes, we will do this with the stable release of 2.2. In the meantime everything is explained on this page:
https://www.multichain.com/developers/json-rpc-api-2-2-beta-3/
In particular, please take a look at the following APIs:
issue
issuetoken(from)
update(from)
gettokenbalances
And the 'Amounts parameter forms' section at the end.