There might be instances while working in your document that you might have lost track of the objects in your artwork. After that, using the layers panel menu, choose Flatten Artwork option. If you want to flatten layers, select the layer you want to flatten.The result will be a merged layer based on the layer you picked last. After that, using the layers panel menu, choose Merge Selected option. You can also select a few objects among the layers by using the shift key. For merging items, hold the Control key if you are using Windows or the Command key in case if you are using Mac.With these two options, the stacking order is preserved however, all the layer level elements will be lost. Merging allows the consolidation of selected items into a single layer, while flattening makes all the items consolidate in a layer.

If you require the need to merge or flatten layers into a single layer. You have the option to fuse different layers or objects into one. Just be careful that you are moving the object to the correct layer. A more simple option is to drag the object directly to the desired layer.Now go to Object> Arrange> Send to Current Layer.Select the Layer you want the item to be moved to.After creating objects in a layer, you could still move them to a different Layer by following the below instructions: Often in Illustrator, once you have created an object, you might have to move it to a different Layer. Finally, select New Layer or New Sublayer from the layers panel menu.

From the layers panel, select options after selecting the item.Double click the object from the layers panel.It is called sub-layers, where the items will be branching from the original layer. Follow the below instructions. Illustrator allows the users to further create objects and link them with the parent layers. Again, if you need the items, click on the lock icon, and now you can work on the Layer again. This means that your layer is locked, and you cannot move or select anything from the items inside the layer. On clicking there, a padlock icon appears. Step 6: Next to the eye icon is the area to lock your Layer. If you need to see the Layer again, all you have to do is press the eye icon area again. Step 5: Press it, and the Eye icon disappears, making all the items in it out of sight. It is used to hide or show the content in the Layer.

Step 4: You will find adobe illustrator layers adjacent to the created Layer.

Adobe illustrator mac merge layers