There are many ways of adding data to the model and of displaying the data
Data can be stored with
Individual symbols as Name-Value Pairs - see Symbol Data
The Instances of symbols in the hierarchy of the model
The Generic Types of symbols - (see Object Tags for a definition)
Data can be shown on the diagrams by using Special Symbols
Object Specifications show and allow entry of the Object and Instance data.
Right click a symbol and select Object Data to quickly call this form