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