IBM 1725 SLS - Manual (Page 286)

Sessions
QMS 1725 SLS Print System User's Guide D-12
L
on collate
Allows a change in both the layout properties and in the
collation properties at this subjob boundary. Any QMS DOC
settings for standard commands (such as layout, document
finishing, or document formatting) which are specified in the
current subjob will replace the previous values of these
settings inherited from the previous subjobs. All other
settings inherited from the previous subjobs in the
document remain unchanged. This setting is a combination
of the on and collate parameter values.
Notes: %%IncludeFeature: newlayout (on collate) is always
issued at the beginning of the document for the first subjob
regardless of the actual command specified by the user.
%%IncludeFeature: newlayout (off) is assumed for
subsequent subjobs when the command is not present.