For a Block Mode host (3270 or 5250), the default in navigation for generated applications is to not position the cursor to the last location from a recording. (Starting with Version 4.2.4 of ViewerLib.dll and FSCProLib.dll libraries, the cursor location will change to the same as if key-stroked, but this isn't the same as positioning in a menu specifically for navigation).
For screens that have menus or other field locations that users can position the cursor in (without keying "X" or other flags), set this property true to have generated code position the cursor in specific navigation situations.
