hi @Murakami Fumihiko 

Thanks for your comments, which translate as:

“Masking/mosaic function. 

When introducing the contents of a board to people who do not have access rights to the board, such as at a seminar, it may be a problem if the content is readable.

In that case, it is currently necessary to show an image with a lower resolution. It would be great if you could temporarily reduce readability by masking or mosaicing a specified area or the entire board.”

Thank you for submitting this very thoughtful idea, we appreciate it!

Should our team have any other questions, they will be sure to follow up.  For those coming across this idea, if you feel it's helpful to have or have additional suggestions, please be sure to vote for it and leave a comment about your use case to help our team scope this request.