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API > API/Plugins > API/Plugins/NiagaraEditor > API/Plugins/NiagaraEditor/Widgets > API/Plugins/NiagaraEditor/Widgets/SItemSelector > API/Plugins/NiagaraEditor/Widgets/SItemSelector/FItemSelectorViewModel
References
| Module | NiagaraEditor |
| Header | /Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/Widgets/SItemSelector.h |
| Include | #include "Widgets/SItemSelector.h" |
void AddItemToRoot
&40;
const ItemType & Item,
const TSharedRef< TArray< CategoryType >> Categories
&41;