Standard views do not allow to walk in the scene, but they are a quick way to get to predefined locations in the room.
In the Ribbon (in the Navigation group) you can find 7 buttons (that can even be customized with their related keyboard shortcuts).
The bigger one allows you to get to the default point of view when opening the Navigation window (standard shortcut is Ctrl + 1 ).
The remaining six allow you to move at the edge of the room, or at the top of it (shortcuts are Ctrl+1, Ctrl+2, ...Ctrl+5).
The Top one is very useful as it allows you to have a look at the room from above, as you can see in this image (standard shortcut is Ctrl + 6).
This article is valid for DomuS3D® 2017 and later versions