Layers and the Layer Stack
New Layer // Ctrl+Shift+Alt+N
New Layer with dialogue // Ctrl+Shift+N
Add an image // Drag file from windows explorer window
Change layer order // Drag the layer up and down the layer stack
Hide a layer // Press the eye icon
Move a layer // Click V then drag with cursor
Delete a layer // Drag the layer to the bin icon, or, making sure
you have nothing selected, click the layer name and hit delete
Layer Opacity // Drag over the ‘opacity’ text, or type in numerically.