Community Tip - If community subscription notifications are filling up your inbox you can set up a daily digest and get all your notifications in a single email. X
May I learn how are you managing data revisions? There is no history tree in CED. I tried to put older datas in a container but I think it is not the real solution.
The best way to manage version is to use integrated Creo Elements/Direct Model Manager. (https://www.ptc.com/en/products/creo/elements-direct#manager)