Travelling tomorrow on an Aeroplan reward ticket, all business class: MCT - BKK - SIN - DPS.
First segment on WY from MCT - BKK.
Check in on app for WY, no issues. Shows my subsequent SQ flights but does not provide boarding passes.

Try to check in on SQ app for the BKK - SIN and SIN - DPS flights however get the error message saying:
"We are unable to process your online check-in at the moment as the first flight in your itinerary is operated by a partner airline. For flights operated by partner airlines, check in via their website or their check-in counters at the airport. (Error Code: C4011)"

1) Will the Oman agents in MCT be able to help / check in / print my SQ boarding passes?
2) If not, is there an SQ transfer desk at BKK such that I do not have to exit and go through immigration / customs and check in at the regular desks?
Only concerned as my layover in BKK is on the shorter side so do not want to misconnect.