Where:
- object_number is an integer number
- colour is a string
- line_width is an integer number
- dash_density is a number
- from_x1 is a number
- from_y1 is a number
- from_z1 is a number
- to_x2 is a number
- to_y2 is a number
- to_z2 is a number
add a dashed line to generic object object_number
dash_density is number of dashes per Angstrom.