The "Descriptives" dialog box contains two select boxes. The select box on the left 
contains all the variables in the dataset. The select box on the right contains variables 
that you want to use in the analysis. Between the two boxes is an arrow that can move 
variables between the two boxes.  If the user wishes to select the variable educ  
from the left side and move it to the right side, the user can click on the variable educ 
in the left box, then hit the Tab key, which will activate the arrow, then hit Enter. 
The variable educ should then appear in the right-hand box. 

To save changes and exit, hit Tab until the OK button is highlighted, then hit Enter.
Alternatively, hit Alt+P to paste the syntax into the syntax window.