When you set a modification variation to use a template, the variation does not define its own content but instead receives its content from the template. Any changes to the template also affect the variation.
To use a template in a modification:
In the Content templates list, select the template you want to use.
In the Content options section, define the content options, if any. The selection of options is based on the content options schema in the template. The following example shows a content options UI with a single option for setting a mandatory string label.
To view the JSON object describing the full content options for the variation, expand the Content options object (JSON) section.