Is there any way to delete all the comments on 360 quick comments box in one click?

salam Mr R. aasfa no.

No. All comments on a 360 space can only be deleted one at a time.

Nope! No Way Just Sit & Delete Them One By One Hope You Enjoy!

The Comments feature lets you and your friends leave fun, fast notes for each other. The Comments module displays in the left column of "My Page." You can post a comment to a friend's "My Page" in two ways: * By typing your own message in the enter field * By using the pull-down menu to select a "quick comment," such as "sup," "nudge," "congrats," or dude!" Anyone who can see your profile can see the comments people have posted to your "My Page." You can decide who can post comments to your page. Click "Settings" in the Comments module and choose from the pull-down menu that says "Allow comments by:" You can hide the quick comments. Click "Settings" in the Comments module and uncheck the box that says "Enable quick comments." You can get notification when someone makes a comment on your page by setting an Alert.