[QUESTION] Is it possible to convert STEEM to SBD on Steemit.com?

I know I can go to the market and trade STEEM for SBD, but what about converting? The SBD-STEEM conversion option is available, but currently not the other way around. Or maybe I've missed something and that's an option that simply does not exist.

For those who don't know: "converting" is a special operation in Steem where you take STEEM, send it to the network, and the network prints out brand-spanking-new SBD for you that's roughly the same value as the STEEM you sent.

Note: I do not actually want to do this right now, I'm just curious.