A list of all feature requests incl. a voting system for features is available in the ISPConfig bugtracker:
http://bugtracker.ispconfig.org/inde...ect=3&do=index
Link to the feature request form:
http://bugtracker.ispconfig.org/inde...=3&task_type=2
Please search in the feature list of the bugtracker if there is a request for your feature already before you post a new request.