You can add visual 'annotations' in Creo Illustrate but you'll have to add them as real parts in the part structure - using Symbols is not supported yet unfortunately. BUt if you add 3D models for your symbols to the illustration you can have them in your AR experience. You can then either use show/hide animation in the sequence definition or you can use ModelItems inside the AR experience and set visibility or opacity as part of your Experience definition.
you mentioned that using symbols is possible with the workaround of adding them as 3D models. Can I add the symbols from Creo Illustrate directly as 3D models? If so, could you please describe how I can do that? Or do I just have to insert for example some arrow models which I can use like the other parts of the model?
Thank you, Lara