Each shape and connector in a diagram can contain metadata or custom properties - extra information about those shapes.


Most of a shape's custom metadata will be displayed in a tooltip when you hover over the shape or connector, unless you have defined a tooltip shape property.

Edit the shape metadata

Right click on the shape or connector, and select Edit Data from the context menu. Alternatively, select the shape or connector, then press Ctrl+M on Windows, or Cmd+M on macOS.


The shape metadata is displayed in a dialog, with property names on the left, and values on the right.

Note: All shapes and connectors have a unique identifier (ID), which cannot be changed.

  • Add a new property: Type the name in the text field that says Enter Property Name and click Add Property. Then enter the value for your new shape property in the text field that is highlighted.
  • Delete an existing property: Click the cross to the right of the shape property that you want to delete.
  • Change a shape property: Select the text of the property you want to change, enter the new value for that property.

Click Apply to save your changes.

Predefined shape properties

There are some predefined types of metadata, including the tooltip shape property.

Note: When a tooltip is defined, the other metadata will not be displayed when you hover over the shape. If you want all of the metadata to be displayed when you hover over the shape, make sure that shape does not have the tooltip shape property.

Placeholders in metadata

Shape metadata can also contain placeholders (variables), which allow you to change the text based on the context of where the shape is in the diagram (within another shape) or how it is styled. There are several predefined placeholders that you can use, such as the diagram's filename, the date or time.

Learn how to work with placeholders

Tip: If you would prefer to edit the diagram source code (XML) directly, instead of working with metadata through dialogs, click Extras > Edit Diagram to view and edit each the source code of each page in your diagram.