Prompt before opening option in the dashboard settings creates a message for users, how to change?

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Using the prompt before opening option that is found in the dashboard settings in Oracle BI populates a message for the users on the dashboard that says "Opening this dashboard page may take a while. Select prompt values and click Continue if you want to open this page." Is there a way to change both the message and the formatting of this message? This option also creates a placeholder image for the analysis as it is not loaded yet, Is there a way to remove these images as it makes the page look like it is erroring out?