IfcProject is the root entity of the spatial structure. There is only one IfcProject in each model. The IfcProject object is automatically created when the model is created. The default name of the IfcProject is the same as the name of the model.
If you want to change the name of the IfcProject, you must right click on the IfcProject task in the Explorer and select Rename.
If you want to add an ObjectType value to the IfcProject, add a Description or more likely associate some objects directly to the IfcProject with the association IfcRelAggregates, then you must:
Right click on the IfcProject task in the explorer and select Edit.
Then the toolbar opens in which you can specify these values.
If you click on the Aggregated In IfcProject button, then you get the possibility to select objects that will be automatically associated to the IfcProject with the relation type IfcRelAggregates.
Learn more about IfcProject and the IFC workflow here.