Your question is not clear enough. Maybe you can post your question in this other forum:
http://forums.autodesk.com/t5/Autodesk-Revit/bd-p/317
Really is´nt clear. I need to make a annotation family for a component of leyend. For example a door component, a anotation that tag to family door descripcion, mark type... Thanks
You cannot really tag a door on a legend. At least not in the same automatic way that a door can be tagged in a model view. One possible solution is to create a generic annotation family with, for example, a circle, and a label inside the circle. The label will be associated with an instance text parameter. Then, on the legend view, use the "Symbol" icon to load your custom tag and place it by your doors in your legend. From the properties of the tag, enter the designation for the label, such as "A" , "B", etc.