The holder of a pilot licence, when acting as co-pilot of an aircraft required to be operated with a co-pilot, he/she shall be entitled to be credited with not more than 50 per cent of the co-pilot flight time towards the total flight time required for a higher grade of pilot licence.
This is common in most ICAO countries but this does not mean that if you are PF you will be given 50% of the time as PIC. 50% of the time will count towards your ATPL. Co-pilot time PF or PNF is 50% that counts towards the ATPL. Total Time remains the same.
You have to be under supervision. I would really like to know from people here if ABY offers it. If you are not PIC under supervision you cannot log this towards the ATPL even if you are PF.