If Command Extensions are enabled the SHIFT command supports the /n switch which tells the command to start shifting at the ...

If Command Extensions are enabled the SHIFT command supports
the /n switch which tells the command to start shifting at the
nth argument, where n may be between zero and eight.  For example:

    SHIFT /2

would shift %%3 to %%2, %%4 to %%3, etc. and leave %%0 and %%1 unaffected.