Nok Air - Fly n' Ferry - Possible to check-in online?

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Hi all,

In Dec we will depart DMK and use a fly n' ferry (all one booking on Nok Air website) to Koh Lipe.

BUT, can I check in on-line? Or do I need to go to a counter to get stickers / badges for the ferry/mini-van transfer?

Would be greatful for any info. Also, at end of Dec we are doing the same fly n' ferry from Koh Tao to DMK. Again, would appreciate any feedback / experiences.

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Also, I notice there is a mobile check-in. Does this mean we wouldn't have to print a boarding pass? Is there a QR code scanner from the mobile app (or similar) at the airport to get our boarding pass? Never been to DMK so this is all new to me.