Have just sent PM to swisscex.com exchange and asked if they could add NXT. After that I saw,
that they have a support page under faq
https://www.swisscex.com/faq where developers could
contact them.
I'm by far not technical savy, so maybe a developer could help them
to add NXT.
For the moment fees are: Buy 0.15% Sell 0.2%, Withdraw 0.3%
and may be lower it soon.
Should we wait for the answer or may someone step in?