Hi Jonathan, thanks for your question.
At the moment that it is not possible. Others have created an Idea in our ideas portal for this, feel free to vote on it, or create your own if it does not capture your requirements.
It may help to clarify the problem(s) you are trying to solve in the Idea, and why you believe hyperlinks would be the best solution to solve the problem(s).
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Brennan Fox
Product Quality @ IBM Cognos Analytics
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