m0n0wall Forum - intermediate certificate support

I use m0n0wall in an enterprise setting, where my location's m0n0wall server is one of several. We want to use a single wildcard certificate to support the https login on all servers. The problem is that the implementation of the wildcard certificate requires the local installation of both an intermediate and a primary certificate, and the intermediate certificate install seems not to be supported in the m0n0wall webadmin interface. I looked at Digicert's documentation for handling intermediate certificates in Apache hoping that might provide me enough insight to determine a solution on m0n0wall's webserver (using shell commands from exec.php), but there seem to be too many differences to make that workable.

If anyone has a solution for this problem, please let me know. Thanks