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API > API/Editor > API/Editor/UnrealEd > API/Editor/UnrealEd/UModeManagerInteractiveToolsCont-
Description
Called when viewport interactions are built. Add any custom interactions to the behavior source that is passed in via the event. Interactions are automatically removed when editor modes change.
| Name | OnBuildViewportInteractions |
| Type | function |
| Header File | /Engine/Source/Editor/UnrealEd/Public/Tools/EdModeInteractiveToolsContext.h |
| Include Path | #include "Tools/EdModeInteractiveToolsContext.h" |
FViewportInteractionsSourceMessage & OnBuildViewportInteractions()