[TYPO3] get rlmp_securedownloads to use usergroup instead of user for specifying downloads

[Andrew Davis]

trying to use rlmp_securedownloads
which works nicely, but it uses the user session_id as the key 
basically, allowing you to specify a download available for a specific 
user. I wish to make a download available for a specific USERGROUP.

I have tried to figure out the changes in the classs to make this 
happen, but I fear it is beyond me at this point...

anybody tried this already i wonder? or perhaps can someone suggest 
another 'secure downloads' type extension that uses usergroup instead?

thanks,
Andrew