Place keynotes on elements in a linked model.
For detailed information on placing keynotes, see Placing a Keynote.
Guidelines for placing keynotes in linked models
Revit compares the paths to the keynote files referenced in the current and linked files; it does not compare the keynote tables. If the paths to the keynote files are different, Revit assumes that the keynote tables do not match and displays an error message.
If a keynote value is not assigned to the element, a blank keynote is displayed. To edit the keynote value, use the Open (and Unload) command to open the linked file and assign a keynote value to the element.