You can use the technique of deleting and undeleting a field to move it about on the screen following these steps:
Move the cursor to the field you want to move.
Press DELETE (<F1> followed by the D); the field disappears.
Move the cursor to where you want the field to begin.
Press UNDELETE (<F1> followed by the U); the field reappears in its new location.
You can also move a parameter field in a limited way with the Insert Char, Delete Char, Insert Line, and Delete Line keys.