我来打酱油的！

似乎不能.
Because:
-%INCLUDE statement will copy SAS code (statements) from external file to current input stack.
-It is global statement and can be used ONLY on the boundary.
SO,  in my opinion, it is no way to define which lines (in the external SAS program) to be led into the new program.

我来打醋的！顺便瞎说几句-不一定对.

学习中

我是来买糖的，顺便学习了。