Thanks for the mention @kevinduhe.
@Thibault2ss, can you tell me how you are running your FDM printers? Is it software you wrote or something that is publicly available? We currently do not support saving of print files or moving them around other than sending prints directly to the Form 2 using either USB or a network.
I understand your first bullet. For the second one, it sounds like you are asking to be able to print to a file and then some way to send that file to the printer as a print job. (I’m guessing you want to do this from a script). Is that correct?