# Layer Modify

- Projection
- Position
- Visibility
- View

Change here the inside and outside visibility for a single layer or a list of layers.

To modify a layer, click over the graphic area to open a menu and choose a layer, or write its identification (name and number) on the Layer entry. To modify a list of layers, press the button List (after creating the list of layers with Layer->Select). Parameters for empty entries or Local choices remain unchanged.

To change a layer name write the new name in the Layer entry, followed by the layer number (GAMGI needs the number to identify the layer). To change the name for a list of layers, press List first and then write the new common name in the Name entry.

### Visibility

The Out and In parameters control the visibility to the outside and to the inside of the various layers in a window.

The visibility Out parameters are used only by the current layer, to control how to attempt to see the other layers: 1) All (try to see completely the other layers); 2) Partial (try to see the other layers in a blurred way, to distinguish them from the current layer); 3) None (do not see the other layers).

The visibility In parameters are used only by non current layers, to control how the current layer is allowed to look inside them: 1) All (the layer can be seen clearly); 2) Partial (the layer can be seen in a blurred way, to distinguish it from the current layer); 3) None (the layer cannot be seen from the outside).
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