In Photoshop, you can create vector smart objects by selecting the Smart Object tool and then clicking on the Create a New Smart Object button. Once you have created a new smart object, you will need to specify the type of object you want to create. You can choose from a variety of options, such as text, image, or shape. Next, you will need to specify the dimensions of your new smart object. You can choose either a default size or enter a custom size. Once you have specified the dimensions of your new smart object, you can click on the OK button to create it. Now that your new vector smart object has been created, you can use it in your document by clicking on its name and then clicking on its contents.