Materials Studio 2024 COMPASS force-field parameters missing for AlCl₄⁻ and Al₂Cl₇⁻

Hello everyone, when I was using the forcite module in MS 2024 to perform geometric optimization on chloroaluminate ions, I found that there were no force field options for AlCl₄⁻ and Al₂Cl₇⁻ when using the COMPASS force field. Even the general force field did not include these options. As you know, the COMPASS force field cannot be manually customized to add force field parameters. In this case, how can I manually add force field parameters?