Left-Text-Alignment
This property works in conjunction with the 
Left-Text style and controls the alignment of the text in the area on the left of the Check-Box. Set this property to 0 to have the text right aligned or to 1 to have the text left aligned. If this property is not set, then the text is right aligned.
 
Example - Define a check-box with the text right aligned
screen section. ...   03 screen-1-cb-2 Check-Box      line 27.0      column 10.0      size 156      lines 31      id 11      title "My Check Box"      left-text-alignment 0       .  |