Custom logon field and RSA

I used WebDAV to add a new field to the logon page, called "desired_master_grp". I did this by saving the logon page, modifying the HTML source, and uploading that via WebDEV as "index.htm". This works fine -- the "desired_master_grp" value is passed into FirePass and it is used via dynamic master group mapping to select the master group.

 

 

The problem is that if the first password is invalid, or if the user needs to set their RSA PIN, etc, the resulting page is internally generated and no longer contains my extra "desired_master_grp" field. I'm trying to find a solution to this:

 

 

1) Is there another method (besides WebDAV) to add a new field to every page -- logon page, password failed page, PIN creation page, etc?

 

2) is there a way via WebDAV to add this field to those other pages?

 

3) Is there some other way the end-user can select their desired master group from a list-box before logon?