PLATE_TOP_VIEW
This is a template attribute. Template attributes can be used in filtering, or to retrieve data from the model to use in drawings and reports. For example, when you create a report, Tekla Structures replaces the attributes added in the report template with the corresponding object property values.
This attribute is available for rows with the content type PART. It
displays the top view of the contour plate. You can use PLATE_TOP_VIEW in a graphical field only.

For more information about attributes that you can use in graphical fields, see support article Attributes for graphical fields in Template Editor.
Limitations
The following attributes have no impact on
PLATE_TOP_VIEW: FontColor, Dimensions, ImageWidth, ImageHeight, and ScaleType.