Problems encountered in SAP ABAP SMOD & CMOD second generation enhancement

Q1:EXIT function code cannot be changed

Q1: Exit function code cannot be changed

This is normal , This function really cannot be changed .
It is normal. This function cannot be changed actually.

When performing enhancement operations , double-click INCLUDE ZXXXXXXX.
To enhance, double click INCLUDE ZXXXXXXX.

At this time, a warning will pop up in the lower left corner , Press enter all the time to create and enter this INCLUDE.
Now it alert a warning, press ENTER all the time to create and enter INCLUDE.