Customizing BI Launchpad in BO 4.1 (Adding a URL link to Login Screen)

Hi All

I am trying to put a URL link on the BI Launchpad login screen (BO 4.1 SP3) . This link will take a user to a webpage where they can reset their passwords in BW. (Client is using SAP BW authentication and as per security policy user needs to rest the BW password every 45 days. Their preference is to have a link on BI Launchpad login screen which can help them to do so).

Is there a way i can add a link on BI Launchpad login screen. I tried a few options by customizing the BIlaunchpad.properties file and redeploying it through wdeploy but am struggling to add a link which the user can actually click. Any help or direction will be much appreciated.

Thanks in Advance

Sanjit