[xwiki-users] Modifying class property value programmatically

Is there a way of updating class property values using Velocity or Groovy? I have a class property called Group which contains values (A, B, C ..) but want to allow users to be able to add/remove groups without editing the class via the Admin area. Ajdin -------------------------------------------------------- NOTICE This message and any files transmitted with it is intended for the addressee only and may contain information that is confidential or privileged. Unauthorised use is strictly prohibited. If you are not the addressee, you should not read, copy, disclose or otherwise use this message, except for the purpose of delivery to the addressee. Any views or opinions expressed within this e-mail are those of the author and do not necessarily represent those of Coventry University.