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Enter a , select the Feature Class Type (e.g., Point, Line, or Polygon), and define your coordinate system. In ArcMap :
In the Catalog tree, right-click a geodatabase or feature dataset and select .
: Use the Import > Feature Class(es) option to convert external data like shapefiles or CAD files into your geodatabase.
: Right-click an existing layer and select Selection > Make Layer From Selected Features to create a new, separate layer based on your current selection.
The MakeFeatureLayer function can also be used to create a temporary layer for further selection or manipulation. 3. Other Creation Methods