Experts have acquired professional knowledge on a topic and are often scientifically trained professionals, in a broader way, everyone that has acquired special knowledge in a problem area through participation or involvement. The goal of an expert panel is to get a specific valuation of an idea. Moreover additional knowledge can be gathered and influence the foundation of a solution. For this method specialists or representatives of an interest group (panel) come together to assess the ideas presented. They present their view oft he concept and compare their opinions to create an additional benefit. A moderator can support the participants in their valuation. This method can be used at different points of the evaluation.
Online: prepare an online meetingroom (e.g. Zoom), make sure all participants can access and audio and video will work.
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http://betterevaluation.org/evaluation-options/expert_panel