NX accelerators - ALT, CTRL, SHIFT and similar in the sketch

Siemens NX has many functions and options, that users are not familiar with. In the series 'Siemens NX - Lesser known features and options' I will try to explain some of them.
NX accelerators can greatly improve the use of software. In this movie, I will show some of these in a sketch environment.
00:00 Intro
00:21 ALT - ignore relationships
00:52 Middle Mouse Button - remember relationships
01:19 Middle Mouse Button - Line/Arc switch
02:29 F8 - orient to the nearest orthogonal projection
02:36 SHIFT+F8 - orient the sketch to its original orientation
03:13 SHIFT+move spline point - vertical or horizontal movement
03:39 CTRL+object select - creates a copy
04:02 CTRL+move spline point - microposition is activated
04:16 Conclusion