CDE will now tell you that the window manager must be restarted to implement them. This means that once you set up windows as you want them, you can leave them there and they will be there when you log in again. You may soon grow tired of always being asked to confirm that you want to logout and return to the current setup when you next log in. There you can select the absence of the logout dialog. It is worth checking out the new .cshrc that you have been given to select options like printer destination.
Guidance is available there about what the commands mean.