We created a script for the main menu screen in SAP, saplmtr_navigation.e0100.txt.
In some cases the script seemed not to be active. We realized that sometimes SAP sends the screen saplmtr_navigation.e0101.txt instead. How can we avoid maintaining two scripts, one for 100 and one for 101?

In script saplmtr_navigation.e0101.txt, use an "Include":

include  "saplsmtr_navigation.e0100.txt"