Hi @Soon
So far, there is no such function, we cannot provide different current navigation for different pages.
Such a requirement can only work for different subsites at the moment, we can set up different current navigation for different subsites.
- Go to Gear Icon > Site Settings > Navigation (under Look and Feel)
- Under Current Navigation Section, do not select “Display the same navigation items as the parent site” radio button.
Also, I would suggest you submit a feedback to the SharePoint UserVoice Platform if there any expectation about the future version of SharePoint:
http://sharepoint.uservoice.com/
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