[Koji Sheila]

The OMCR QPD sleds are finely aligned using picos.

The incident beam alignment was controlled by SRC2, BC servos (DC3/DC4), and OMC ASC.

OMCR QPDA was centered by "OMCR QPD Centering B" picomotor (upstream steering mirror in the OMCR path).
Then OMCR QPDB was centered by "OMCR QPD Centering A" picomotor (downstream steering mirror in the OMCR path)
Repeated these steps until we have the beams at the center of the QPDs.

After the pico action, the beam alignment on the ISCT6 was revirewed. There was visible misalignment as expected and
this was adjusted by the bottom periscope mirror.