How to call jsps with preferred settings in iSupport.

Recently I got a chance to work on OAF customisation in Isupport.I had created few custom pages which are to be called from Isupport tabs.I made a call to these pages after deploying as OA.jsp?page=/oracle/apps/ibu/returnmgmt/webui/RmaProRepairInfPG.And navigated to other pages from these pages.But when I navigate back to the initial page which I had called the AM context is lost.Then I changed the call to jtfcrmchrome.jsp?page/oracle/apps/ibu/returnmgmt/webui/RmaProRepairInfPG now the AM context remains true and the required functionality is achieved.