To create a pre-order type of product, the process is similar to the one you would follow for any other product. After creating a new product, scroll down until you find the Product Data section, and check the “Pre-Order” box:
And this is what your product is going to look like to your customers:
To customize the text that appears on the pre-order button, go to YITH Plugins > Pre-Order and access the general options:
At the bottom of the page you’ll find “Label Settings”, where you can customize the displayed text.