[Angle] is an integer that specifies the angle number (the numbering scheme varies with the instrument).
[Pos] is a position that the selected motor will be moved to.
An optional [Qualifier] can take one of the following values:
I: [Angle] will be moved by [Pos] from its current position
H: Hardware position of [Device] will be set to [Pos]
T: [Angle] will be moved together with [Angle-1] by a ratio 2:1
For example, D4=56.5 will drive angle A4 to 56.5 degrees. D4I=2.5 will drive angle A4 2.5 degrees further. D4T=41 will drive angle A4 to 41 degrees and angle A3 to Pos3 + (41 - Pos4)/2, where Pos3 and Pos4 are current locations of angles A3 and A4, respectively.