RESTAB – reset table 

All changes made with SETTAB during a test are buffered. At the end of the test, they are automatically reset:

If a CATT function terminates a test, RESTAB* is automatically called, even if the test does not call it

If you want to avoid resetting table changes, enter RESTAB% after the SETTAB statements. CATT can no longer reset changes buffered up to this point. You can reset subsequent SETTAB statements with RESTAB.

See also:

SETTAB - Set customizing table