There's now a hotfix for 3dx 5 to work for users who are using only Iclone 6 and want to convert to non human. Support sent me 3DX5 Repair Tool so they probably will add it to accounts as a patch. It works now and no more pop up of disabled features in 3dx 5.

Previous workaround was to install the trial
http://www.reallusion.com/iclone5/iclone_trial.aspx