How to combine layers.
Merge Layers in the Layer Properties Manager
- Click Home tab
Layers panel
Layer Properties.
At the Command prompt, enter LAYER. - In the Layer Properties Manager, select the layers you want to merge into another layer and right-click
Merge Selected Layers To. - In the Merge to Layer dialog box, select a target layer.
Objects on the merged layers are moved to the layer you select in this dialog box.