Question: Possible to disable the editable feature in Maple?

Hi guys and girls, 

 

The new Maple 2018 have a feature in the buttom called editable. If you remove that mark in the buttom of the screen, then maple doc can't be edited. I teach students who have english as a second language and some remove the mark in the editable box by mistake. Such that they can't do there hand-ins etc. 

 

So is there anyway to disable the editable box in the buttom of the screen? 

 

thanks in advance.

Fred

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