All I seem to find, within the W2OS Governance registry documentation, is how to increase the number of columns for doc links for assets via the use of the RXT file. I would like to know if it is possible to increase the number of rows, in order to add more document links for assets.
You can customize the RXT file to have an unbounded table. There you can add multiple doc links without limiting to three. For detailed information, please refer "The maxoccurs Element" section in the product documentation.