can i make sand duper in server?

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    i tried to search on youtube about sand duper and there is a lot of them using ender portal as core thing to duplicate sand or gravitiy blocks and i tried to make it on my friend server and when i try to destroy the ender portal it doesnt work as it showed, is it has been fixed or there is a setting on server to enable ender portal break

    Quote from Watershaker

    i tried to search on youtube about sand duper and there is a lot of them using ender portal as core thing to duplicate sand or gravitiy blocks and i tried to make it on my friend server and when i try to destroy the ender portal it doesnt work as it showed, is it has been fixed or there is a setting on server to enable ender portal break

    Which server software and version is the server running on?