Add Layer (No Lights)
If you’ve worked with Grease Pencil before, you’ll know that one of the most frustrating parts about adding a new Layer is that new Layers come into your scene with the ‘Use Lights’ property enabled. This often means that your color palette changes completely when you switch to ‘Render’ mode in ‘Viewport Shading.’
Delete Selected Layers
Delete Selected Layers is a user experience improvement from the native Layer Remove button (—) as it removes all selected layers, while the Layer Remove button only works with a single active layer.
Delete Hidden Layers
Delete Hidden Layers removes any layers you have hidden from your scene.
Delete Empty Layers
Delete Empty Layers removes any layers with no content.