Tourist is wrong. The requirements for an EASA ATPL include "500 hours in multi-pilot operations on aeroplanes" and FCL.001 defines multi-pilot operation on aeroplanes as "an operation requiring at least 2 pilots using multi-crew cooperation in either multi-pilot or single-pilot aeroplanes"
If a single-pilot aeroplane, such as the King Air 350, is required to be operated by at least 2 pilots (e.g. by the operator's AOC) then the flight time may be counted towards the multi-pilot experience requirement for ATPL issue.