We all need an option to permanantly disable powerclip lines because:
If we untick it to show, It can get printed mistakenly when a file is opened in a system where the option is on.
It disturbs while viewing the complete layout aesthetically. (You can say, that we can untick it to show, but then the problem in point no. 1 arises)
Its irritating to just change the box type manually again & again.
You can make it simply like in earlier versions, if we put something in a box it becomes powerclip frame, if we extract the content, it reverses to simple box. It was quite seemless.