How to add and manage custom attributes in iRedAdmin-Pro

======== Required information ====
- iRedMail version: 0.8.7
- Store mail accounts in: LDAP
- Linux/BSD distribution name and version: Debian wheezy
- Related log if you're reporting an issue:
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I edited directly some special attributes from ldapadmin. For example I use the "employeeType" , "Initials", "businessCategory" and "jpegPhoto" attributes.

Is there a way to manage these iRedAmin (iRedAdmin-Pro-LDAP-2.1.2.) surface?