Are Custom Properties Kept Through Updates

[cburgessYUD2V]

Hi All, 

I'm new to the User Defined Properties feature, and I was wondering if the custom property tabs and parameters I add are maintained if the NWC file the object is a part of is updated. I think these custom tabs could be very useful for me, but not if they get overwritten every time that model is updated. 

[cburgessYUD2V · Accepted solution]

I did an experiment and found that the custom user-defined property I made was retained through a model update, although I didn't do an exhaustive test of all possible options.

In my federated NWF model, I made a custom property on a DWG file that is in a "container" NWD model. I went into AutoCAD and made an edit to that DWG, then I updated the NWF of the container model (where I noted that the properties of the DWG in the container model did not include my custom one), saved it as an NWD, and finally opened my federated NWF. The custom property I made was still shown in the DWG's properties here, so this leads me to understand that the custom property "lives" in the Navisworks model it was created in, and as long as the model that the property was added to is present, the custom property will continue to be included on that specific object/file/model.