The standard way is to use the regular Edit Component command and edit the tag value from the Insert/Edit Component dialog box.
Lets you pick right on the attribute. This tool also works on invisible attributes. It finds and displays the closest attribute to your pick point on a block insert.
A dialog box displays and lets you type in a new attribute value.
Click Pick to select another attribute whose text you want to use for the selected attribute. You can also click the arrow keys to increment or decrement the attribute value.
To edit an invisible attribute: pick on the block insert near where the invisible attribute is located. AutoCAD Electrical toolset finds and displays the nearest attribute of your pick point. AutoCAD Electrical toolset displays an "x" at the origin of the attribute.
You can use the AutoCAD Electrical toolset Move/Show Attribute command to edit the attribute text of a component.
The Show/Hide Attributes dialog box opens, listing all of the attributes and their values of the component.
A dialog box opens and lets you type in a new attribute value.
You can click the arrow keys to increment or decrement the attribute value.