Creating and Deleting Folder Layers and Layers
Click on WORKSPACE → ADD FOLDER LAYER in the main menu.
Enter the name of the new folder layer and click on the OK button.
The new folder layer will appear in the Layer Explorer window. Click on it
There are five types of inputs to create a new layer:
Vector File...: to choose one file of Esri shapefile , MapInfo, GeoJSON, GML, or KML format (only available if the corresponding plugin is loaded).
Raster File …: to choose one file of image format. To choose more than one press Ctrl+ Click filename (only available if the corresponding plugin is loaded).
Tabular File...: to select a tabular file such as CSV, txt, dbf format.
From Data Source...: to select a data source from where to pick up the data. See the Data Source Selector and Dataset Selector interface.
Query Dataset...: creates a layer defining a restriction clause on an existing layer.
Click on WORKSPACE → ADD LAYER on the main menu and select one type of input.
To delete permanently one or more layers of the workspace click on it with the right-button and select Remove Selection.