It can be time-consuming to merge layers in Adobe Illustrator. However, this is a very good way to plan and manage your designs.
Launch Adobe Illustrator and Select Layers panel.
We will try to create some simple designs to demonstrate.
Now let’s add another layer and then we’ll draw something on it.
Let’s create a third layer and add a rectangle to it.
The fourth and final layers with a rectangle.
By holding the shift key, we are now going to select all the layers.
Click the layers drop-down menu.
Click ‘Merge Selected’.
A “Layer 1” will be created. All layers are now under this one. An arrow will be shown. Clicking this will show you your entire layer list.