well, if you meant that, you want to set your custom action view from your own module,
you can set it up yourself according to the user as follows:

1. Go to "Settings" app / module
2. On navbar, click "Users & Companies"
3. From the dropdown, click "Users"
4. Click the "Preferences" tab
5. Set the "Home Action" to the module relevant to you
(reference)

here in my example, I changed the initial home action to open Employees instead of Discuss (default):