The enhanced geometry of custom shapes has an attribute "draw:text-rotate-angle". It specifies a rotation of the text area around its center which is performed in addition to a rotation of the shape. This attribute is especially useful, if you want an upright text in a rotated shape. LibreOffice can handle this attribute correctly and uses it in import and export filters. But there exist no user interface for it. Currently users have to edit the markup in the file or use a macro to change the rotation angle. Request: Add a user interface for this attribute.