Global modification of door tags

Is it possible to assign door tags to every instance of a certain size within one style? For example, to assign “D1” to all my 3’x7’ hinged doors

Hi @seflorance, there is a command that let you select openings of the same style (vaSelSameStyle), so after the multiple selection, you could assign the same tag value from the Properties panel. However, it is not possible to select openings of the same size.
But using a GH definition you can. Find it attached Tag Openings with same (9.7 KB) . It basically filters windows with the same size (rectangular profile) and uses the Update Property component to reassign a new tag value to the filtered windows.