View State is a state in which we are able to move or navigate through 3D space or viewport. To enter this state, we must press ALT and SPACEBAR on the keyboard (+mouse).

ALT - Temporary view state (press and hold)

SPACEBAR - Toggle Permanent view state.

…default shortcuts are only available as long as we are in Camera state ( Alt - Temporary, Spacebar - Permanent ). Most of these are useless and thus some of them are taken and adjusted for modeling.

Alt + Q Quit Houdini
Alt + M First Person Camera
Alt + G Material Palette Window (from the viewport)

| Spacebar + 1, 2, 3, 4, 5 | Views - Perspective, Top, Front, Right, UV (Click number twice to toggle between e.g. Front/Bottom or Right/Left) |