Thanks for reply.
Well, the only software I am aware of which is working with RAW from S1 at the moment are PHOTOFun from panasonic which is very simple and doesn't offer convertion to DNG and second software SILKYPIX which works quite well but doesn't convert to DNG too. It seems I need be patient and wait for implementation for S1's RAW in Affinity... S1 is very new camera so I guess that's the reason why it is not supported yet. I'am working on windows but don't think Mac is any better about it at the moment, can be mistaken though...
I did some research and didn't find any program which could convert RW2 to DNG ( RW2 from S1 obviously...) Adobe DNG Converter (newest is 11.2 ? right? ) doesn't do the job as well.. So I need to be patient I guess... :( ...