The external difference/merge textual tool

For some attributes, the space provided in the Attributes pane is insufficient to view them properly (for example, a multi‑line box). In such cases, you can start an external textual diff/merge tool.

To open a textual diff/merge tool, in the Attributes pane, right‑click an element and select Diff text or, when appropriate in merge mode, select Merge text. By default, IBM® Rational® Rhapsody® opens the ClearDiffMrg tool to display information about the selected element.

To set up and customize an external textual diff/merge tool, use the DiffInvocation and DiffMergeInvocation preferences in the TextDiffMerge preferences category. For example, you can edit the DiffInvocation preference to start a different textual diff/merge editor than ClearDiffMrg, assuming that the editor can be started from the command line.


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