3.4-1 Can authors assign their right to decide whether, when, how and under what author’s designation their work is published for the first time (right of first publication) pursuant to Art. 9 para. 2 CopA to a publishing house?

No, the right of first publication is a moral right of the author and cannot be assigned. A publishing house may ‘help’ an author to publish a work, but in practice authors are required to assign their rights of reproduction and publication to the publishing house.