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In Google Analytics 4 (GA4), the Query Explorer allows you to add filters to your queries, but you’re correct that the interface currently only allows for one dimension to be selected at a time from the dropdown. It’s not possible to select multiple dimensions simultaneously from the filter dropdown. For complex queries that require multiple dimensions, you may need to use the Google Analytics Data API. This API allows you to build much more specific queries that can include multiple dimensions or metrics. It’s a bit more technical but provides much more flexibility for advanced analytics requirements.
