javascript - Remove 'Duplicate this page and subpages' functionality in Silverstripe -


in silverstripe if right click on page in sitetree have ability duplicate either single page or page , children.

enter image description here

we have found users duplicate pages large numbers of children , prevent either removing 'this page , subpages' option or restricting admin users only.

how can achieved?

looking @ code in cms/javascript/cmsmain.tree.js in silverstripe 3.4 doesn't there way switch off.

one option have add css cms hide menu item everybody:

mysite/css/cms.css

#vakata-contextmenu a[rel="duplicate"] + ul > li:last-child {     display: none; }

to enable cms.css file add following line our config.yml

mysite/_config/config.yml

leftandmain:   extra_requirements_css:     - 'mysite/css/cms.css'

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