Is it possible to set the "default alias path" for a specific user programmatically? I have several users of a site, all with different permissions to access different areas of the site. I am trying to show the “root” for the site as a specific page for each user (depending on their permissions). Below is a sample structure and functionality.

Sample site structure
Index
- Node 1
- Node 2
- Node3

Admins users default page: index
Group1 users default page: node1
Group2 users default page: node2

-Bryan