Hi
Yes, that should be fairly easy using a generic redirect (see advanced redirects documentation here).
You should create a new alias with something like this:
Alias type: Do a 301 redirect
Alias: /folder1{*}
Target URL: https://newsite.com/
Note that this will redirect /folder1 and any page within /folder1 to the root of the new site.
If you want to redirect any page in /folder to the same page on the new site, you would do this:
Alias type: Do a 301 redirect
Alias: /folder1{*}
Target URL: https://newsite.com/folder1/{*}
You can easily change the target folder as well:
Alias type: Do a 301 redirect
Alias: /folder1{*}
Target URL: https://newsite.com/another-folder/{*}
Let me know how it goes.
Best regards
Yannick Gaultier
weeblr.com / @weeblr