When you are editing a slider, you can find yourself in a situation, when need another layer which quite similar to an existing one, only would like to have it e.g. with a different text. There is a time-saver feature for this purpose in the Layer Slider.
In the slider edit view, click on a layer, and you will see 2 icons in the right corner. Click on the Duplicate icon to have a copy of the current layer, or on the Trash icon, if you would like to remove that layer permanently.