Add new metadata to the submission form

hello
We are working on a new projector with OJS, in the flow it is necessary to modify the submission form so that the user can add more metadata, please help from the community to find the script or lines of code that allows adding new metadata and modifications necessary so that these can be stored properly.

OJS version 3.4

Hi @alexpineda,

Please see here: Adding Custom Input Fields during article submission in OJS: Is It Possible? - #2 by rcgillis

-Roger
PKP Team