The status line at the top of the window shows the current directory or object that the window is processing. At the bottom are four buttons and, sometimes, some options. By turning this on and off during an operation you can use it like a pause button. Yes answers yes to the question displayed in the log area. No answers no to the question displayed in the log area.
Some actions have options, which appear as option boxes at the bottom of the window.
Normally, it confirms the deletion even if Quiet is pressed. Note that you still can't remove files from non-writeable directories because in that case you really don't have permission. Use this to speed things up if large numbers of messages are being logged.