Your company might have a process which requires the review comment to be structured in a specific way and we have just the right thing to help you with that. You can find the templates creator under Account Settings > Personal settings.
In order to create one click on Create Template and select it's name, which parts of the app should it be available for and design your own structure of the review comment.
Once you've created a template, you can find them under the 📄 icon. They will be arranged in the alphabetical order.