Modifying Screens Dynamically
Use
The attributes of screen elements are set statically in the Screen Painter when you define them. However, it is possible to override some of these attributes in ABAP programs with the help of a special predefined structure.
The SAP System contains a function called field selection, which allows you to change the attributes of screens dynamically.
It is also possible to set the cursor on a screen to a particular position dynamically from your program.