You can assess your domains for risk of bias as you read through the study full text. When you identify a sentance or phrase from within the full text you can select some text. You will then be asked what domain the text should be associated with and if appropriate you can add a comment.
The annotation will then be associated with the specific domain in your risk of bias form. You'll see the side bar open and the quote will appear. If you have enough information to make a judgement simply select the level of bias and click save. You can make as many annotations as you like for a specific domain.
If you are assessing a domain that can be specific to an outcome group then you'll be asked to say what outcome group the judgement applies to. If the outcome group is not present you can add one by clicking on the "Add outcome group" button.