Hi All,
With the latest update of Acrobat on 13th Feb, this issue has been addressed. Make sure you are on the latest update by visiting Help > Check for updates (
https://www.adobe.com/devnet-docs/a...2018.html#dccontinuousfebruarytwentyeighteen/ ).
We have added a preference "Use Shift + Click for Multiple Selection with Output Preview " to enable multiple objects selection when the output preview dialog is open. To select multiple objects, use Shift + Click. To add a sticky note containing the color values, use Alt + Click (on Windows) or Option + Click (on Mac).
For more details, refer
https://helpx.adobe.com/acrobat/using/previewing-output-acrobat-pro.html .
Please try it out and let us know your feedback.
Regards,
Priyanka Jain