diff --git a/src/rp2_common/boot_stage2/CMakeLists.txt b/src/rp2_common/boot_stage2/CMakeLists.txt
index 73c3e3e..71fbabe 100644
--- a/src/rp2_common/boot_stage2/CMakeLists.txt
+++ b/src/rp2_common/boot_stage2/CMakeLists.txt
@@ -25,6 +25,7 @@ endif()
 if (NOT EXISTS ${PICO_DEFAULT_BOOT_STAGE2_FILE})
     message(FATAL_ERROR "Specified boot stage 2 source '${PICO_DEFAULT_BOOT_STAGE2_FILE}' does not exist.")
 endif()
+pico_register_common_scope_var(PICO_DEFAULT_BOOT_STAGE2_FILE)
 
 # needed by function below
 set(PICO_BOOT_STAGE2_DIR "${CMAKE_CURRENT_LIST_DIR}" CACHE INTERNAL "")
@@ -98,3 +99,9 @@ endmacro()
 
 pico_define_boot_stage2(bs2_default ${PICO_DEFAULT_BOOT_STAGE2_FILE})
 
+# Create a new boot stage 2 target using the default implementation for the current build (PICO_BOARD derived)
+function(pico_clone_default_boot_stage2 NAME)
+    pico_define_boot_stage2(${NAME} ${PICO_DEFAULT_BOOT_STAGE2_FILE})
+endfunction()
+
+pico_promote_common_scope_vars()
\ No newline at end of file