After manually adding them for a user I've had success. I'm unable to get the attributes to populate on the GLUU server during cache refresh though.
Cache Refresh LOG
(This is the same output I've gotten since creating the attributes)
```
2017-05-01 15:26:53,073 INFO [pool-2-thread-7] [gluu.oxtrust.ldap.cache.service.CacheRefreshTimer] (CacheRefreshTimer.java:303) - Attempting to load entries from source server
2017-05-01 15:26:53,749 INFO [pool-2-thread-7] [gluu.oxtrust.ldap.cache.service.CacheRefreshTimer] (CacheRefreshTimer.java:312) - Found '1,956' entries in source server
2017-05-01 15:26:53,752 INFO [pool-2-thread-7] [gluu.oxtrust.ldap.cache.service.CacheRefreshTimer] (CacheRefreshTimer.java:315) - Found '1,956' unique entries in source server
2017-05-01 15:26:53,851 INFO [pool-2-thread-7] [gluu.oxtrust.ldap.cache.service.CacheRefreshTimer] (CacheRefreshTimer.java:364) - Found '0' changed entries
2017-05-01 15:26:53,851 INFO [pool-2-thread-7] [gluu.oxtrust.ldap.cache.service.CacheRefreshTimer] (CacheRefreshTimer.java:369) - Loaded '0' problem entries from problem file
2017-05-01 15:26:53,862 INFO [pool-2-thread-7] [gluu.oxtrust.ldap.cache.service.CacheRefreshTimer] (CacheRefreshTimer.java:382) - Updated '0' entries
2017-05-01 15:26:53,862 INFO [pool-2-thread-7] [gluu.oxtrust.ldap.cache.service.CacheRefreshTimer] (CacheRefreshTimer.java:384) - Failed to update '0' entries
2017-05-01 15:26:53,871 INFO [pool-2-thread-7] [gluu.oxtrust.ldap.cache.service.CacheRefreshTimer] (CacheRefreshTimer.java:424) - Removed '0' persons from target server
2017-05-01 15:26:53,872 INFO [pool-2-thread-7] [gluu.oxtrust.ldap.cache.service.CacheRefreshTimer] (CacheRefreshTimer.java:439) - There are '1,956' entries before updating inum list
2017-05-01 15:26:53,872 INFO [pool-2-thread-7] [gluu.oxtrust.ldap.cache.service.CacheRefreshTimer] (CacheRefreshTimer.java:443) - There are '1,956' entries after removal '0' entries
2017-05-01 15:26:53,872 INFO [pool-2-thread-7] [gluu.oxtrust.ldap.cache.service.CacheRefreshTimer] (CacheRefreshTimer.java:447) - There are '1,956' entries after adding '0' entries
```
![Custom Attribute Registration](http://i65.tinypic.com/2evcdv4.png "Custom Attribute Registration")
I've tried this as well with no success:![Doubling the source attributes](http://i65.tinypic.com/sy5z7m.jpg "Doubling the source attributes")