Placeholders are text fields that you are prompted to complete when you create an version from a template. For example, a 'full name' placeholder may be used in a New Starter template.
Open the Design of your version.
Add a Text or Story panel to your page.
Select on the panel to edit it
Position your cursor where you would like to add your placeholder and select the placeholder icon.
In the Add New field type in the name of your placeholder - for example, Full Name.
Save your changes by selecting the Save button.
Below is an example of how your template will now look:
When you create a new version using the template you will be prompted to complete any placeholders on the Create a destination version page.
Below is an example of how a new version will look when the placeholder has been completed: