Knowledge Management

Question:
I am having a major problem trying to display an ALV table in a subscreen using one of the "reuse_ALV.. " FUNCTION MODULES. It only displays a full screen. It seems to work OK using classes/methods etc but I cannot figure out the code to change/add buttons/change/display variants the same way I can do with the function modules.
I can sent the ALV to a popup but not a subscreen.
Any ideas before I have to tackle the classes/methods in OO.
Thanks in advance
Answer:
Seems that you have to go OO way as in REUSE_ function module both screens (for full screen and popup) are hard coded.
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Best regards, Sergey Korolev