Resizing interaction fragments

In Unified Modeling Language (UML) sequence diagrams, you can horizontally resize any interaction fragment, and you can vertically resize a combined fragment.

You must have a sequence diagram that contains at least one combined fragment with multiple lifelines open in the diagram editor.
To resize an interaction fragment:
  1. In the interaction frame, click an interaction fragment.
  2. Complete one of the following steps:
    • To resize an interaction fragment horizontally across lifelines, click an interaction fragment and drag the handles left or right across additional lifelines. In the Add Covered Lifelines window, click a lifeline and click OK. The interaction fragment resizes to the new position and covers the selected lifelines.
    • To resize a combined fragment vertically, drag the handles up or down across any messages and other interaction fragments on the same lifeline. The combined fragment resizes to the new position and the covered messages and interaction fragments are reparented to this resized combined fragment.

Parent topic: Developing combined fragments

Related concepts
Combined fragments
Interaction operators

Related tasks
Creating combined fragments
Adding lifelines to combined fragments
Removing covered lifelines from combined fragments
Adding interaction operands to combined fragments
Removing interaction operands from combined fragments
Moving interaction operands within combined fragments
Adding guard conditions to interaction operands

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