There is a way, but it's a very bad idea
You should not do it. Middle click is used too much to practically change it and retain important functionality in Blender's keymaps.
You would have to add a new entry here in the Preferences(F4 -> P), Keymap tab, under Screen, Screen(Global):
But you would also have to search for and remove all the conflicts:
No need to use Alt before M.
Simply go to 3D view window. Press hotkey M and select your merge choices.
Here is something new about Merge. If you ever want to remove doubles before rendering, it is now hotkey M > Merge > By Distance.
What you need is your mouse's software installed. For example, Logitech has its own software for its peripherals like keyboard, mouse.
Once installed, open up the program, and set your extra key as CTRL+Z
All you need is to copy the userprefs.blend file from the old computer to the new one.
If you are using windows the file is usually in your user's app data roaming folder. For more. Info please refer to this post:
Where is the startup file stored?
As others have already pointed out that Shift + Numpad 4 and Shift + Numpad 6 rotate the view by increments. This is ok and already works on the default set up.
For me, the better solution was to go to Edit > Preferences Keymap under Grease Pencil > Grease Pencil(global) press Add New. From here set your preferred key binding (I chose Middle Mouse ...
The shortcut for rotate view can be changed in user preferences. Assuming you are using 2.8 keymap, see the gif below:
Open user preferences.
Go to keymap section and search for rotate view to middle mouse in key binding.
Then you may simply change the shortcut for Ctrl + MMB from the default
In Blender 2.79 and before (not sure how long back), the Ctrl+Tab indeed opened a menu to choose the selection type, one had to be in edit mode first though.
From Blender 2.8 on wards, there are the following hot keys while in Edit Mode:
1 for Vertex select
2 for Edge select
3 for Face select
You can add multiple active modes by holding Shift while pressing ...
To frame all objects in one viewport do: Home or Ctrl + Home Both with the origin as the camera focal point
Or Shift + c
This will also bring the 3D cursor back to the origin.
Numpad . will frame the currently selected object or objects.
Numpad / will frame the currently selected object or objects and hide everything else, until you press it again.
You can ...