When we change sas default settings by Using OPTIONS statements .. How do I get back to Default Settings without closing SAS session..
there are several ways listed here:
SAS(R) 9.3 System Options: Reference, Second Edition
...Reset Options to the Default Value by Using the SAS System Options Window
To reset a system option to the default option by using the SAS System Optionswindow:
Right-click Options and select Find Option.
Type the option name and click OK.
Right-click the option name and select Set to Default.
or read futher down;
Run PROC OPTSAVE to save your options settings, before changing any.
When you want to restore them to their original values, run PROC OPTLOAD.