Custom Permissions in Jira 7.6.2

[Lipun]

Hi,

I have some user defined permissions in Jira 6.2.7. insatnce which I created using below steps.

1.Add permission type in permission-types.xml like below 

   <type id="custompermission" enterprise="true">
       <class>path off my permission class</class>
  </type>

2.Edit /atlassian/jira/atlassian-jira/secure/admin/views/permissions/addpermission.jsp file to get the permission configuration.

In JIRA v7.6.2 i followed above steps but did n't get the custom permission in configuration page since edit permission configuration page replaced by pop up.

Please let me know how to add my custom permission to the edit permission configuration popup .