We added a mass property feature but when we go to the Feature/Datums and want to check the "create" box for the csys_cog, it is greyed out and won't allow the pick. We used to be able to do it. Is there a config setting or some other problem?This thread is inactive and closed by the PTC Community Management Team. If you would like to provide a reply and re-open this thread, please notify the moderator and reference the thread. You may also use "Start a topic" button to ask a new question. Please be sure to include what version of the PTC product you are using so another community member knowledgeable about your version may be able to assist.