If you want to know how to add a call-to-action button to your WordPress slider, you can do it following steps in this article. It is simple. You will start with installing and activating Soliloquy Slider plugin. After that you go to Soliloquy >> Add New to create a new slider. On the right side you will see a widget with short-code that you will need later. You will need Soliloquy Custom CSS addon, too. Go to Soliloquy >> Addons to install and activate the Custom CSS addon. Then you will edit your Soliloquy slider and add CSS to create a call-to-action button. After that add HTML for call-to-action button. On the Images tab click on the pencil icon. In caption field add Call-to-Action. On the end copy short-code to your clipboard. And now you can go to edit or add new post or page.
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How to Create a WordPress Slider with Call-to-Action Button