Don't understand G13 (**) in Okuma code program

[emsee]

I am thrown in an legacy post on Okuma LU25. It generates some codes which I don't understand: G13(**), G14(**)

PRO. Ex:

$B12345-1.MIN%
G13 (**) [WHAT DOES THIS LINE MEANS?]
M0 (Revised)
M0 (New Program, CCABNA.)
()
(*- B12345-? -*) (Edit: NO)
()
(Title: Shaft, Trolly Wheel G:\Sm6\UG_Parts\71444038_cnc_L_M.prt * LU25)
(Dwg.# 71444038 [382-30974] rev. "00" [1st op of 2])
(Mon 8/15/2011 Cycle Time: 3.5 min)
()
(Z0 @ END FACE -.08)
(X0 @ CL)
()
(PLATO = ____")
()
N5G90G95G40
G50S2800
(User Parameter Soft Limit "A")
(VZOFZ=704.0) (<-- 0 Set)
(VPVLZ=713.0) (<-- Home set)
(VZOFC=0.0) (<-- Chuck-angle set)
N10G0X30Z30M42 (^) P10
G14 (**)
()
N15G90G95G40
G50S2800
(User Parameter Soft Limit "B")
(VZOFZ=524.0) (<-- 0 set)
(VPVLZ=535.0) (<-- Home set)
(VZOFC=0.0) (<-- Chuck-angle set)
N20G0X30Z30M42 (^) P10
N35G0X30.Z30.G97S570M5M9 (^) P10
N40M1
(G13,4) (**)

[underthetire]

G13 upper turret, the (**) would have been a comment, probably just a post thing. Could read (upper turret ) etc..
G14 lower turret, same thing.

[skullworks]

Yup G13 & G14 for which turret the code will run on.

Then you get into the Pxxxx sequencing and you can have all sorts of fun.

I used to run a Big LR with the 5020 control.