Blender – assign different cameras to different view-ports

Software:
Blender 2.79

By default, the view-ports Camera view in Blender displays the view from the camera that is set as the scene’s Active Camera.
If you split the view and in the new view select a different camera and set it as the Active Camera, the view in other view-ports set to camera view will update to display the new Active camera.
In short, by default, it seems you can’t assign different camera views to different view-ports..

But you can…

You just have to unlock the wanted view-port from the scene’s Active Camera by de-activating this button:

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When the Use the scene’s Active Camera and layers in this view button is de-activated, your allowed to set an Active Camera for the specific view-port without changing the scene’s Active Camera setting, therefore not affecting other view-ports displaying the camera view.

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Configuring Blender for faster object selection in large scenes

Software:
Blender 2.79

In large scenes, selecting objects becomes slow.
There’s a frustrating lag and the software hangs between the time you Right-Click an object in the view-port, and the time it gets selected.
* especially if there are a lot of mesh surfaces behind it in the view-line of the mouse cursor.

The Systems settings shown below can dramatically improve this.
* You need a GLSL capable video card.

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Unreal Engine 3D viewport navigation

Software:
Unreal Engine 4.18

LMB Drag – move horizontally on the X Y plane.

MMB Drag – move on the viewing vertical plane (to the sides and up / down ).

RMB Drag – Rotate (Pan) the view without moving.

Alt + LMB Drag – Arc Rotate view

Alt + RMB Drag – Dolly In / Out view (move forward and back ward along viewing axis)

F – Frame Selection (Zoom Extents)