Wait a second. As @FrankVl said - your biggest problem isn't creation or not of a sourcetype. You don't have a well-developed data onboarding process. And you are trying to use technical means to walk around an organizational problem. Even if you manage to make the "source" sourcetype visible under another name (either by applying this data-duplication recipe or by using the rename option, noone can guarantee that your data format won't suddenly change or the "source" sourcetype won't get renamed to something else rendering your walkaround useless. So try to solve organizational problems with organizational tools.
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