diff --git a/CMakeLists.txt b/CMakeLists.txt
index bdd7d0b..b2eb20e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -33,13 +33,6 @@ set(VISIBLE_cmake_modules_IND_GUI_ENTRIES OPENCMISS_CMAKE_MODULES_ROOT)
 
 set(SETUP_PROJECTS CMAKE_MODULES MANAGE)
 
-set(MANAGE_ORG OpenCMISS)
-set(CMAKE_MODULES_ORG OpenCMISS)
-set(MANAGE_REPO ${MANAGE_ORG}/manage)
-set(CMAKE_MODULES_REPO ${CMAKE_MODULES_ORG}/cmake_modules)
-set(MANAGE_BRANCH develop)
-set(CMAKE_MODULES_BRANCH develop)
-
 set(KNOWN_OPENCMISS_VERSIONS develop)
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}")
@@ -74,6 +67,16 @@ endif ()
 
 include(Options)
 
+mark_as_advanced(OPENCMISS_SETUP_ORGANISATION)
+mark_as_advanced(OPENCMISS_SETUP_BRANCH)
+
+set(MANAGE_ORG ${OPENCMISS_SETUP_ORGANISATION})
+set(CMAKE_MODULES_ORG ${OPENCMISS_SETUP_ORGANISATION})
+set(MANAGE_REPO ${MANAGE_ORG}/manage)
+set(CMAKE_MODULES_REPO ${CMAKE_MODULES_ORG}/cmake_modules)
+set(MANAGE_BRANCH ${OPENCMISS_SETUP_BRANCH})
+set(CMAKE_MODULES_BRANCH ${OPENCMISS_SETUP_BRANCH})
+
 set(SETUP_TYPES standard libraries dependencies cmake_modules)
 set_property(CACHE OPENCMISS_SETUP_TYPE PROPERTY STRINGS ${SETUP_TYPES})
 if (DEFINED SETUP_TYPE)
diff --git a/Options.cmake b/Options.cmake
index 644078a..aced8c2 100644
--- a/Options.cmake
+++ b/Options.cmake
@@ -39,6 +39,34 @@ set(OPENCMISS_SETUP_TYPE "standard" CACHE STRING "The type of OpenCMISS installa
 
 set(OPENCMISS_INDEPENDENT FALSE CACHE BOOL "Setup with independent locations for libraries, dependencies, modules, and manage script.")
 
+##
+# .. _`opencmiss_setup_organisation`:
+#
+# OPENCMISS_SETUP_ORGANISATION
+# ----------------------------
+#
+# The GitHub organisation to use for setup i.e., for the cmake_modules and manage repositories.
+#
+# The default value is 'OpenCMISS'.
+#
+# See also: :cmake:`OPENCMISS_SETUP_BRANCH`
+
+set(OPENCMISS_SETUP_ORGANISATION OpenCMISS CACHE STRING "The GitHub organisation to use for setup i.e., for the cmake_modules and manage repositories.")
+
+##
+# .. _`opencmiss_setup_branch`:
+#
+# OPENCMISS_SETUP_BRANCH
+# ----------------------
+#
+# The branch of the cmake_modules and manage repositories to use for setup.
+#
+# The default value is 'develop'.
+#
+# See also: :cmake:`OPENCMISS_SETUP_ORGANISATION`
+
+set(OPENCMISS_SETUP_BRANCH develop CACHE STRING "The cmake_modules and manage repositories branch to use for setup.")
+
 ##
 # .. _`opencmiss_perform_initial_build`:
 #