To work with Viewing All Layers
To make all the layers in an image visible, do one of the following:
Click the Visibility buttons on the palette until all the layers are visible. When a layer is invisible, the Visibility button displays a red "X" .
Select the Layers and then click View. After that click All.
Right-click a Layer button and choose View and then All from the pop-up menu.
To work with Merge in layer menu
You can combine multiple layers together to create merged layers. The merged layer contains all of the data from the source layers and bases its appearance on their blend modes. All vector data in the source layers will be converted to raster data.
Merge layers in one of the following ways:
Merge all the layers to produce a flat image by choosing Layers > Merge > Merge All (Flatten) or right-clicking a layer in the Layer palette and choosing Merge followed by Merge All (Flatten) from the pop-up menu.
Merge only the visible layers by choosing Layers and then select Merge. AFter that click Merge Visible or right-clicking a layer in the Layer palette and choosing Merge followed by Merge Visible from the pop-up menu. The hidden layers are not affected.
To work with delete a layer
To delete a layer, choose Layers and then Delete, or do one of the following on the Layer palette:
Right-click the Layer button and choose Delete from the pop-up menu.
Click the Layer button, and then click the Delete Layer button at the upper left of the palette. A message appears asking you to confirm this action. Click Yes.
Drag the Layer button to the Delete Layer button and release the mouse. A message appears asking you to confirm this action. Click Yes.
To work with Duplicate in Layer Menu
There are four ways to duplicate a layer:
Click on the Layer button on the Layer palette, and then choose Layers and Duplicate from the Menu bar.
Right-click its Layer button, and then choose Duplicate from the pop-up menu.
Drag its Layer button over the Create Layer button at the upper left of the Layer palette.
Click on the Layer button; choose Edit and then Copy to copy.
Click on the Layer and then choose Edit. After that click Paste and As New Layer.
