Unity

Scripting is an essential ingredient in all applications you make in Unity. Most applications need scripts  to respond to input from the player and to arrange for events in the gameplay to happen when they should. Beyond that, scripts can be used to create graphical effects, control the physical behaviour of objects or even implement a custom AI system for characters in the game. SOURCE: https://docs.unity3d.com/Manual/ScriptingSection.html

Viewport Alt+left+click+drag - rotate around object Alt+right+click+drag - zoom in and out Tools - Objects Q - Pan W - Move E - Rotate R - Scale T - Rect Tool Z - Pivot Mode toggle X - Pivot Rotation Toggle V - Vertex Snap CTRL+LMB - Snap Edit Ctrl/Cmd+Z - Undo Ctrl+Y (Windows only) - Redo Ctrl+X - Cut CtrlC - Copy CtrlV - Paste Ctrl+D - Duplicate Shift+Del - Delete F - Frame selection up close Ctrl+Alt+F - Frame in front of us in the center of viewport Ctrl - Find Ctrl+A - Select All Ctrl+P - Play Ctrl+Shift+P - Pause Ctrl+Alt+P - Step CTRL+2 - Game View CTRL+6 - Animation CTRL+9 - Asset Store CTRL+Shift+C - Console Game Animation CTRL+P - Play CTRL+Shift+P - Pause SOURCE: https://docs.unity3d.com/2018.4/Documentation/Manual/UnityHotkeys.html