I installed the trial version for Movie studio 18 platinum TWICE and the studio 18 suite once and for all three times, the software did not support h.264 10bit 422 L-GOP so I guess the answer is a "NO". If it works, please tell me, maybe I am doing something wrong? If not which of Magix video editing software (if any) does support it? Thanks for any reply.
Movie Studio 18 don't support 4.2.2 10 bits video files.
Example from SONY Alpha 7S III
Movie Studio 18 (18.1.0.24) NO Movie Edit Pro 2021 (20.0.1.80) NO Video Pro X13 (19.0.1.117) Basicaly NO but YES but with AVC-INTRA Codec (fee activation).