When creating text, you can enter one of the following strings and it will be substituted:
All but the last three are read from fields on the Properties tab of the File Properties dialog, displayed by clicking File > Info > Show models contents list.
To enter a substitution string:

on the Quick Access toolbar to enter selection mode.The text is now substituted:

In our example, the string is substituted by the name of the user who saved the original model. If the model is new, then the name of the current user appears.
If you double-click the text, you will see the original string.
As the fields on File Properties dialog change, so do any special strings in the text.
For example, suppose your model contains the following string:
