This will create e.g. 10 blank vars for 20 cases

INPUT PROGRAM.
LOOP #I=1 TO 20.
VECTOR X(10).
END CASE.
END LOOP.
END FILE.
END INPUT PROGRAM.
exe.

If you already have cases in the data then

VECTOR X(10).

does the same.

Then use rename, variable label, value label, format and variable level
commands respectively to set attrributes.