diff --git a/docs/doc.md b/docs/doc.md
index ac3a33c..f36191a 100644
--- a/docs/doc.md
+++ b/docs/doc.md
@@ -4,7 +4,7 @@
 
 Importation and correction of OMEGA/MEx observations from binaries files.
 
-`class OMEGAdata(obs='', empty=False, data_path=_omega_bin_path, corrV=True, corrL=True)`
+`class OMEGAdata(obs='', empty=False, data_path=_omega_bin_path, corrV=True, corrL=True, disp=True)`
 
 `find_cube(lon0, lat0, cmin=0, cmax=10000, out=False)`
 
@@ -73,9 +73,9 @@ Display of OMEGAdata cubes.
 
 `show_data_v2(omega, data, cmap='viridis', vmin=None, vmax=None, alpha=None, title='auto', cb_title = 'data', lonlim=(None, None), latlim=(None, None), Nfig=None, polar=False, cbar=True, grid=True, mask=None, negatives_longitudes='auto')`
 
-`show_omega_list_v2(omega_list, lam=1.085, lat_min=-90, lat_max=90, lon_min=0, lon_max=360, pas_lat=0.1, pas_lon=0.1, cmap='Greys_r', vmin=None, vmax=None, title='auto', Nfig=None, polar=False, cbar=True, cb_title='auto', data_list=None, mask_list=None, plot=True, grid=True, out=False, negatives_longitudes=False, **kwargs)`
+`show_omega_list_v2(omega_list, lam=1.085, lat_min=-90, lat_max=90, lon_min=0, lon_max=360, pas_lat=0.1, pas_lon=0.1, cmap='Greys_r', vmin=None, vmax=None, title='auto', Nfig=None, polar=False, cbar=True, cb_title='auto', data_list=None, mask_list=None, negative_values=False, plot=True, grid=True, out=False, negatives_longitudes=False, **kwargs)`
 
-`save_map_omega_list(omega_list, lat_min=-90, lat_max=90, lon_min=0, lon_max=360, pas_lat=0.1, pas_lon=0.1, lam=1.085, data_list=None, data_desc='', mask_list=None, sav_filename='auto', base_folder='../data/OMEGA/sav_map_list_v2/', ext='')`
+`save_map_omega_list(omega_list, lat_min=-90, lat_max=90, lon_min=0, lon_max=360, pas_lat=0.1, pas_lon=0.1, lam=1.085, data_list=None, data_desc='', mask_list=None, negative_values=False, sav_filename='auto', ext='', base_folder='../data/OMEGA/sav_map_list_v2/', sub_folder='')`
 
 `load_map_omega_list(filename)`
 
diff --git a/docs/doc_omega_data.md b/docs/doc_omega_data.md
index 6056d74..bb2c3de 100644
--- a/docs/doc_omega_data.md
+++ b/docs/doc_omega_data.md
@@ -4,7 +4,7 @@
 
 Importation and correction of OMEGA/MEx observations from binaries files.
 
-`class OMEGAdata(obs='', empty=False, data_path=_omega_bin_path, corrV=True, corrL=True)`
+`class OMEGAdata(obs='', empty=False, data_path=_omega_bin_path, corrV=True, corrL=True, disp=True)`
 
 `find_cube(lon0, lat0, cmin=0, cmax=10000, out=False)`
 
@@ -61,7 +61,7 @@ Importation and correction of OMEGA/MEx observations from binaries files.
 
 ### OMEGAdata class
 ~~~python
-class omegapy.omega_data.OMEGAdata(obs='', empty=False, data_path=_omega_bin_path, corrV=True, corrL=True):
+class omegapy.omega_data.OMEGAdata(obs='', empty=False, data_path=_omega_bin_path, corrV=True, corrL=True, disp=True):
     Importation of OMEGA/MEx observation.
 
     Parameters
@@ -77,6 +77,10 @@ class omegapy.omega_data.OMEGAdata(obs='', empty=False, data_path=_omega_bin_pat
         If True, compute the correction on the visible channel (Vis).
     corrL : bool, optional (default True)
         If True, compute the correction on the long-IR channel (L).
+    disp : bool, optional (default True)
+        Enable or disable the display of informations during the file reading.
+        | True -> Enable display.
+
 
     Attributes
     ==========
@@ -178,8 +182,8 @@ class omegapy.omega_data.OMEGAdata(obs='', empty=False, data_path=_omega_bin_pat
         | False -> No atmospheric correction.
     atm_corr_infos : dict
         Information about the atmospheric correction (date, method).
-    version : float
-        The version of the omegapy.omega_data.py file used.
+    version : int
+        The major release version of the omegapy.omega_data.py file used.
     add_infos : str
         Additional informations about the observation.
         Show in the OMEGAdata representation.
@@ -237,7 +241,7 @@ omegapy.omega_data.autosave_omega(omega, folder='auto', base_folder=_omega_py_pa
         The OMEGA/MEx observation object.
     folder : str, optional (default 'auto')
         The subfolder to save the data.
-        | If 'auto' -> folder = 'vX.X', where X.X is the Version of the current code.
+        | If 'auto' -> folder = 'vX', where X is the major release version of the used code.
     base_folder : str, optional (default _omega_py_path)
         The base folder path.
     security : bool, optional (default True)
@@ -262,7 +266,7 @@ omegapy.omega_data.autoload_omega(obs_name, folder='auto', version=_Version, bas
         The observation ID.
     folder : str, optional (default 'auto')
         The subfolder where the data is.
-        | If 'auto' -> folder = 'vX.X', where X.X is the given value of code version.
+        | If 'auto' -> folder = 'vX', where X is the major release version of the used code.
     version : float, optional (default _Version)
         The version of the target file (if folder is 'auto').
     base_folder : str, optional (default _omega_py_path)
@@ -489,7 +493,7 @@ omegapy.omega_data.corr_save_omega(obsname, folder='auto', base_folder=_omega_py
         The name of the OMEGA observation.
     folder : str, optional (default 'auto')
         The subfolder to save the data.
-        | If 'auto' -> folder = 'vX.X', where X.X is the OMEGAdata version.
+        | If 'auto' -> folder = 'vX.X', where X.X is the given value of code version.
     base_folder : str, optional (default _omega_py_path)
         The base folder path.
     security : bool, optional (default True)
diff --git a/docs/doc_omega_plots.md b/docs/doc_omega_plots.md
index 602e0bb..bbf9b90 100644
--- a/docs/doc_omega_plots.md
+++ b/docs/doc_omega_plots.md
@@ -14,9 +14,9 @@ Display of OMEGAdata cubes.
 
 `show_data_v2(omega, data, cmap='viridis', vmin=None, vmax=None, alpha=None, title='auto', cb_title = 'data', lonlim=(None, None), latlim=(None, None), Nfig=None, polar=False, cbar=True, grid=True, mask=None, negatives_longitudes='auto')`
 
-`show_omega_list_v2(omega_list, lam=1.085, lat_min=-90, lat_max=90, lon_min=0, lon_max=360, pas_lat=0.1, pas_lon=0.1, cmap='Greys_r', vmin=None, vmax=None, title='auto', Nfig=None, polar=False, cbar=True, cb_title='auto', data_list=None, mask_list=None, plot=True, grid=True, out=False, negatives_longitudes=False, **kwargs)`
+`show_omega_list_v2(omega_list, lam=1.085, lat_min=-90, lat_max=90, lon_min=0, lon_max=360, pas_lat=0.1, pas_lon=0.1, cmap='Greys_r', vmin=None, vmax=None, title='auto', Nfig=None, polar=False, cbar=True, cb_title='auto', data_list=None, mask_list=None, negative_values=False, plot=True, grid=True, out=False, negatives_longitudes=False, **kwargs)`
 
-`save_map_omega_list(omega_list, lat_min=-90, lat_max=90, lon_min=0, lon_max=360, pas_lat=0.1, pas_lon=0.1, lam=1.085, data_list=None, data_desc='', mask_list=None, sav_filename='auto', base_folder='../data/OMEGA/sav_map_list_v2/', ext='')`
+`save_map_omega_list(omega_list, lat_min=-90, lat_max=90, lon_min=0, lon_max=360, pas_lat=0.1, pas_lon=0.1, lam=1.085, data_list=None, data_desc='', mask_list=None, negative_values=False, sav_filename='auto', ext='', base_folder='../data/OMEGA/sav_map_list_v2/', sub_folder='')`
 
 `load_map_omega_list(filename)`
 
@@ -286,8 +286,8 @@ omegapy.omega_plots.show_data_v2(omega, data, cmap='viridis', vmin=None, vmax=No
 omegapy.omega_plots.show_omega_list_v2(omega_list, lam=1.085, lat_min=-90, lat_max=90, lon_min=0, lon_max=360,
                        pas_lat=0.1, pas_lon=0.1, cmap='Greys_r', vmin=None, vmax=None, 
                        title='auto', Nfig=None, polar=False, cbar=True, cb_title='auto',
-                       data_list=None, mask_list=None, plot=True, grid=True, out=False, 
-                       negatives_longitudes=False, **kwargs):
+                       data_list=None, mask_list=None, negative_values=False, plot=True, 
+                       grid=True, out=False, negatives_longitudes=False, **kwargs):
     Display an composite map from a list OMEGA/MEx observations, sampled on a new lat/lon grid.
 
     Parameters
@@ -332,6 +332,8 @@ omegapy.omega_plots.show_omega_list_v2(omega_list, lam=1.085, lat_min=-90, lat_m
         corrupted pixels of each observaiton, in the **same order** than the observations of 
         `omega_list`.
         Each mask is a 2D array, filled with 1 for good pixels and NaN for bad ones.
+    negative_values : bool, optional (default False)
+        Set if the negative values are considered as relevant data or not.
     plot : bool, optional (default True)
         If True -> Diplay the final figure.
     grid : bool, optional (default True)
@@ -363,9 +365,9 @@ omegapy.omega_plots.show_omega_list_v2(omega_list, lam=1.085, lat_min=-90, lat_m
 ~~~python
 omegapy.omega_plots.save_map_omega_list(omega_list, lat_min=-90, lat_max=90, lon_min=0, lon_max=360,
                         pas_lat=0.1, pas_lon=0.1, lam=1.085, data_list=None, data_desc='', 
-                        mask_list=None, sav_filename='auto', 
-                        base_folder='../data/OMEGA/sav_map_list_v2/', ext=''):
-    Save the output of the omega_plots.show_omega_list_v2() function with the requested
+                        mask_list=None, negative_values=False, sav_filename='auto', ext='',
+                        base_folder='../data/OMEGA/sav_map_list_v2/', sub_folder=''):
+    """Save the output of the omega_plots.show_omega_list_v2() function with the requested
     parameters as a dictionary.
 
     Parameters
@@ -396,13 +398,18 @@ omegapy.omega_plots.save_map_omega_list(omega_list, lat_min=-90, lat_max=90, lon
         corrupted pixels of each observaiton, in the **same order** than the observations of 
         `omega_list`.
         Each mask is a 2D array, filled with 1 for good pixels and NaN for bad ones.
+    negative_values : bool, optional (default False)
+        Set if the negative values are considered as relevant data or not.
     sav_filename : str, optional (default 'auto')
         The saving file name.
         | If 'auto' -> Automatically generated.
-    base_folder : str, optional (default '../data/OMEGA/sav_map_list_v2/')
-        The base folder to save the data.
     ext : str, optional (default '')
         Extension to add at the end of the filename (useful in case of automatic generation).
+    base_folder : str, optional (default '../data/OMEGA/sav_map_list_v2/')
+        The base folder to save the data.
+    sub_folder : str, optional (default '')
+        The subfolder to save the data.
+        Final path = "base_folder / sub_folder / sav_filename"
 ~~~
 
 ~~~python
diff --git a/omegapy/omega_data.py b/omegapy/omega_data.py
index 6092b74..4f9f39e 100644
--- a/omegapy/omega_data.py
+++ b/omegapy/omega_data.py
@@ -1522,7 +1522,7 @@ def autosave_omega(omega, folder='auto', base_folder=_omega_py_path, security=Tr
         The OMEGA/MEx observation object.
     folder : str, optional (default 'auto')
         The subfolder to save the data.
-        | If 'auto' -> folder = 'vX.X', where X.X is the Version of the current code.
+        | If 'auto' -> folder = 'vX', where X is the major release version of the used code.
     base_folder : str, optional (default _omega_py_path)
         The base folder path.
     security : bool, optional (default True)
@@ -1546,7 +1546,7 @@ def autosave_omega(omega, folder='auto', base_folder=_omega_py_path, security=Tr
         suff = ''
     savname = '{name}{suff}.pkl'.format(name=omega.name, suff=suff)
     if folder == 'auto':
-        folder = 'v' + str(omega.version)
+        folder = 'v' + str(int(omega.version))
     # Chemin sav fichier
     target_path = os.path.join(base_folder, folder, savname)
     # Testing existent file