Add Commands
- Create
  - Circle track from
  - center - Ctrl+0
  - fixed radius circle - Ctrl+8
  - tangent - Ctrl+9
Curve track from
- center - Ctrl+6
- chord - Ctrl+7
- endpoint - Ctrl+4
- tangent - Ctrl+5
Hand laid turnout - Ctrl+Shift+I
Straight track - Ctrl+G
Turntable - Ctrl+Shift+N

}