Hello Johan,

You can find this information here (Step 1.1-1.4)

Thanks Sergii but I've already followed that and it doesn't work or I'm doing it wrong (likely the latter). Things started breaking.

So I was hoping someone could tell it in a better way which parts of the .config files should be changed and how?

Yes, you right. The document is a bit obsolete and it is not enough to follow the steps described in it. Here is the updated list of steps:

In episerver.config:

• find siteSettings node and change uiUrl attribute (note that if default value is ~/episerver/CMS, the new value should be ~/newUiUrl/CMS)

In EPiServerFramework.config find virtualPathProvider node and change virtualPath attribute of:

• provider with name “ProtectedAddons”
• provider with name “UI” (note that virtual path of UI virtual path provider should also look like ~/newUiUrl/CMS)

In web.config:

• find location node that has path attribute “episerver” and  change it to “newUiUrl”
• find location node that has path attribute “episerver/CMS/admin” and change it to  “newUiUrl/CMS/admin”
• find episerver.shell/protectedModules node and replace rootPath attribute with new value ~/newUiUrl/
• find episerver.packaging node and replace protectedVirtualPath attribute with new value ~/newUiUrl/

Thank you Sergii, that worked splendidly!