diff --git a/dev/external/clone_gitlab_verification_data.sh b/dev/external/clone_gitlab_verification_data.sh
index c6c98f9..d8f94d9 100755
--- a/dev/external/clone_gitlab_verification_data.sh
+++ b/dev/external/clone_gitlab_verification_data.sh
@@ -1,73 +1,153 @@
 #!/bin/bash
 #
-# clone or update the verification documents
+# clone or update verification documents
+# and data from instruments
 #
 TDIR=$(pwd)
 
 pull_or_clone()
 {
     if [[ -e "$1" ]]; then
+        PDIR=$(pwd)
         cd "$1" || exit
         git pull
-        cd "${TDIR}" || exit
+        cd "${PDIR}" || exit
     else
         git clone git@gitlab.cta-observatory.org:cta-science/simulations/simulation-model/"${2}"
     fi
 }
 
-echo "Model configuration"
+# (appendices)
+clone_verification_process()
+{
+    mkdir -p verification-process
+    cd verification-process || exit
 
-# pull_or_clone "simulation-model-description" "simulation-model-description.git"
+    FF=( lst mst-structure mst-flashcam mst-nectarcam sites sst-1m sst-2m-astri sst-2m-gct-s sst-2m-gct-structure sst-structure sst-camera sct )
+    for F in "${FF[@]}"
+    do
+        echo "Checking $F"
+        pull_or_clone "$F" "verification/verification-process/${F}.git"
+    done
+    cd "$TDIR" || exit
+}
 
-echo "Verification process"
+clone_data_project()
+{
+    DIRLIST=("$@")
+    TELSYS="${DIRLIST[0]}"
+    mkdir -p data-from-instrument-teams/"$TELSYS"
+    cd data-from-instrument-teams/"$TELSYS" || exit
+    echo
+    echo "---------------------------------"
+    echo "TELESCOPE SYSTEM $TELSYS"
+    for F in "${DIRLIST[@]:1}"
+    do
+        echo "Checking $F"
+        pull_or_clone "$F" "verification/data-from-instrument-teams/$TELSYS/${F}"
+    done
+    cd "$TDIR" || exit
+}
 
-mkdir -p verification-process
-cd verification-process || exit
+clone_lst_optics()
+{
+    MSTS=( psf-lst-1 window-transmission psf mirror-lists focal-lengths single-mirror-psf psf-and-focal-lengths-slides mirror-reflectivity lightguide budget )
+    clone_data_project "lst/optics" "${MSTS[@]}"
+}
 
-FF=( lst mst-structure mst-flashcam mst-nectarcam sites sst-1m sst-2m-astri sst-2m-gct-s sst-2m-gct-structure sst-structure sst-camera sct )
-FF=( sst-structure sst-camera sct )
-for F in "${FF[@]}"
-do
-    echo "Checking $F"
-    # pull_or_clone "$F" "verification/verification-process/${F}.git"
-done
-cd "$TDIR" || exit
+clone_lst_camera()
+{
+    MSTS=( transit-time pde spe pulse-shape pedestals collection-efficiency )
+    clone_data_project "lst/camera" "${MSTS[@]}"
+}
 
-echo "Data from instrument teams"
+clone_lst_trigger()
+{
+    MSTS=( documentation )
+    clone_data_project "lst/trigger" "${MSTS[@]}"
+}
+
+clone_mst_structure()
+{
+    MSTS=( single-mirror-psf shadowing mirror-layout )
+    clone_data_project "mst-structure" "${MSTS[@]}"
+}
+
+clone_mst_nectarcam()
+{
+    MSTS=( trigger single-pe pulse-shape pixel-layout night-sky-background light-cones )
+    clone_data_project "mst-nectarcam" "${MSTS[@]}"
+}
+
+clone_mst_flashcam()
+{
+    MSTS=( trigger single-pe pulse-shape lightguide quantum-efficiency )
+    clone_data_project "mst-flashcam" "${MSTS[@]}"
+}
+
+clone_sst_harmonization()
+{
+    MSTS=( spe sipm )
+    clone_data_project "sst-harmonization" "${MSTS[@]}"
+}
 
-## MST structure
-MSTS=( single-mirror-psf shadowing mirror-layout )
-
-TELSYS="mst-structure"
-mkdir -p data-from-instrument-teams/"$TELSYS"
-cd data-from-instrument-teams/"$TELSYS" || exit
-for F in "${MSTS[@]}"
-do
-    echo "Checking $F"
-    pull_or_clone "${F}" "verification/data-from-instrument-teams/$TELSYS/${F}"
-done
-cd "$TDIR" || exit
-
-## MST NectarCam
-TELSYS="mst-nectarcam"
-MSTS=( trigger single-pe pulse-shape pixel-layout night-sky-backround light-cones )
-mkdir -p data-from-instrument-teams/"$TELSYS"
-cd data-from-instrument-teams/"$TELSYS" || exit
-for F in "${MSTS[@]}"
-do
-    echo "Checking $F"
-    pull_or_clone "$F" "verification/data-from-instrument-teams/$TELSYS/${F}"
-done
-cd "$TDIR" || exit
-
-## MST FlashCam 
-TELSYS="mst-flashcam"
-MSTS=( trigger single-pe pulse-shape lightguide quantum-efficiency )
-mkdir -p data-from-instrument-teams/"$TELSYS"
-cd data-from-instrument-teams/"$TELSYS" || exit
-for F in "${MSTS[@]}"
-do
-    echo "Checking $F"
-    pull_or_clone "$F" "verification/data-from-instrument-teams/$TELSYS/${F}"
-done
-cd "$TDIR" || exit
+clone_sst_structure()
+{
+    MSTS=( incidence-angle-focal-plane robast-model )
+    clone_data_project "sst-structure" "${MSTS[@]}"
+}
+
+clone_sst_1m()
+{
+    MSTS=( trigger pulse-shape mirror-reflectivity general-documents camera-filter quantum-efficiency nsb-studies )
+    clone_data_project "sst-1m" "${MSTS[@]}"
+}
+
+clone_gct_camera()
+{
+    MSTS=( camera )
+    clone_data_project "gct" "${MSTS[@]}"
+}
+
+clone_gct_optics()
+{
+    MSTS=( mirror-reflectivity general-docs effective-mirror-area psf )
+    clone_data_project "gct/optics" "${MSTS[@]}"
+}
+
+clone_astri()
+{
+   MSTS=( trigger-simulations trigger-logic transmission-silica-filter single-pe shapers prototype-optics pedestals first-data final-design-optics coordinates pde nsb )
+    clone_data_project "astri" "${MSTS[@]}"
+}
+
+clone_sct_optics()
+{
+   MSTS=( psf )
+   clone_data_project "sct/optics" "${MSTS[@]}"
+}
+
+clone_sct_camera()
+{
+   MSTS=( window-transmission pde )
+   clone_data_project "sct/camera" "${MSTS[@]}"
+}
+
+echo "Verification process"
+clone_verification_process
+
+echo "Data from instrument teams"
+clone_lst_camera
+clone_lst_trigger
+clone_lst_optics
+clone_mst_structure
+clone_mst_nectarcam
+clone_mst_flashcam
+clone_sst_harmonization
+clone_sst_structure
+clone_sst_1m
+clone_gct_camera
+clone_gct_optics
+clone_astri
+clone_sct_optics
+clone_sct_camera