Tag panel
Keynote drop-down, and select a keynote type (Element, Material, or User). If the element or material already has a value entered for the parameter keynote, it appears in the tag automatically. If it does not, the Keynotes dialog opens, where you can select the keynote value.
To place keynotes on elements in a linked model, see Placing Keynotes in Linked Models.
To add or create your own keynote data, see Adding Keynote Categories.