The project is dead, the developer does not send coins for exchange, the new wallet does not work, it is very difficult to add coins to a new wallet, there is no support. a nightmare.
1)A pull request was submitted a week or so ago for listing to the BarterDEX. MGNX will be available to trade there in the coming weeks. We have also submitted an application form for listing to the BlockNet DEX.
2) Which wallet are you referring to? If you checked the announcements channel on Discord, you'd see that a few BETA wallets have been released. v0.2.42a is working fine, if you follow the instructions provided by the FAQ I created a few weeks back.
It was released, with a previous MGNX testing chain so you need to replace the parameters in the ports.js and .conf files, then restart the wallet. You should see it begin to sync. From there, you can import the WIF key (if you haven't done so already), and your balance will show up. It's not convenient, but the only version that syncs to the latest chain is 0.2.42b. This version crashes on opening the wallet for Windows and Mac OS.
The instructions are here.
https://cdn.discordapp.com/attachments/388335840356597762/493901260647432193/MGNX_Asset_Chain_FAQ.odt 3) Difficult to add coins? In what way? There is 1 step and that is to import the WIF key of the address you provided in the drop.
4) No support... there are lots of helpful KMD community members and MGN who can assist with troubleshooting, or general support. Just join the MGN Discord here -
https://discord.gg/4bmtNzx 
