Hello,

Regrettably, this isn't possible by default. You will have to design a custom landing page which would check the role of the user and redirect him according to his role. You can also create a custom field in the CMS_Role table so you can dynamically change the redirection path.
You can manage this table in CMSSiteManager / Development / System tables after you run the query below:

update cms_class set [ClassShowAsSystemTable]='1' where classname='cms.role'

FYI:

If you want to edit the CMS Desk/CMS Site manager, you can find out what files are displaying the given content with the Firefox browser. "Right click on the given frame -> This Frame -> View frame info" - there is the path of the file, which contains the displayed page.

Best regards,
Boris Pocatko