SKC allows an operating schedule, manually created or by the SE command, to be run continuously - that is, at the end of the local day a set of summary records is produced (see ED), and the schedule waits for the beginning of the next day and the schedule starts again.
When SKC is ran, it will create a copy of the OP_ST.### to OP_ST.000 as backup as of version 6.2
That OP_ST.000 will then be copied in to the OP_ST.### in during an RE in case of corruption.
See also Section 8 of the Brewer Operators Manual, SK and SE commands.
Once SKC is ran, dosbox will bring you to a new screen where you can type in the name of the new schedule I.E.: ecsc