Some of the standard ABAP Editor functions behave differently when used in the splitscreen editor.

This function reacts to the cursor position. If you call the splitscreen editor from the Modification Assistant, only the new SAP source code may be switched to change mode.
Code read from a remote system may also not be switched to change mode.

If you are reading a program from a remote system or have called the splitscreen editor from the Modification Assistant, you cannot use this function.

The system saves the half of the screen that is currently active.

If you were working in compare mode, the system removes the $$ lines inserted by the comparison before saving.

Sources read from a remote system cannot be saved.

You can display both versions of an object (wherever both an active and inactive version exist).

This function is not available when you call the splitscreen editor from the Modification Assistant.

You cannot execute a source from a remote system. Furthermore, you cannot execute programs when you call the splitscreen editor from the Modification Assistant.

This function is not available when you call the splitscreen editor from the Modification Assistant.

These functions allow you to copy blocks of code from one window to the other.