Stop orders dex

Is there a way to block the exchange of my token?
I would like my token not to be tradable in dex.

Hello! Yes, it’s possible using Smart Assets, you can write a script to disable trading of your assets, prohibiting exchange transaction completely. It’s already in 0.15 version on testnet and will be available soon on mainnet too.

If it is possible, it is not good news.

thank you, hopefully it will arrive soon

Can I do it alone or do I have to wait for the new version?
If I can go immediately, where can I find instructions for this?