Hi, @Luiz Gouvea ,
I have tested in my end. To hide features we need to edit the .xml file in server side and wait for a while.
The cmdlet mentioned in this thread seems not working in my end. The xml file is not modified after running them in the PowerShell. Thus I have to directly add the attribute in .xml file in server side manually and wait for a while.
Update: After testing I find that you need to add $featureXMLfile.save($thisXMLfile)
after the cmdlet to update. Or the change will not get saved.
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