--- a/src/pyams_content/locales/pyams_content.pot	Mon Sep 24 11:23:45 2018 +0200
+++ b/src/pyams_content/locales/pyams_content.pot	Mon Sep 24 16:06:40 2018 +0200
@@ -6,7 +6,7 @@
 msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE 1.0\n"
-"POT-Creation-Date: 2018-09-21 14:52+0200\n"
+"POT-Creation-Date: 2018-09-24 16:03+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -81,62 +81,75 @@
 msgid "Guest user (role)"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/__init__.py:153
+#: ./src/pyams_content/component/gallery/paragraph.py:46
+msgid "(empty gallery)"
+msgstr ""
+
+#: ./src/pyams_content/component/gallery/paragraph.py:44
+#, python-format
+msgid "({0} medias)"
+msgstr ""
+
+#: ./src/pyams_content/component/gallery/__init__.py:156
 msgid "Gallery"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/file.py:60
-#: ./src/pyams_content/component/gallery/zmi/file.py:72
-#: ./src/pyams_content/component/gallery/zmi/paragraph.py:155
+#: ./src/pyams_content/component/gallery/zmi/file.py:56
+#: ./src/pyams_content/component/gallery/zmi/file.py:68
+#: ./src/pyams_content/component/gallery/zmi/paragraph.py:148
 msgid "Add media(s)"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/file.py:182
+#: ./src/pyams_content/component/gallery/zmi/file.py:177
 msgid "Update media properties"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/file.py:236
+#: ./src/pyams_content/component/gallery/zmi/file.py:226
 msgid "Remove media..."
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/file.py:146
+#: ./src/pyams_content/component/gallery/zmi/file.py:141
 msgid "Show/hide media"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/file.py:203
+#: ./src/pyams_content/component/gallery/zmi/file.py:193
 msgid "Audio content"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/paragraph.py:57
+#: ./src/pyams_content/component/gallery/zmi/paragraph.py:60
 msgid "Medias gallery..."
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/paragraph.py:70
+#: ./src/pyams_content/component/gallery/zmi/paragraph.py:73
 msgid "Add new gallery"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/paragraph.py:92
+#: ./src/pyams_content/component/gallery/zmi/paragraph.py:95
 msgid "Edit gallery properties"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/__init__.py:63
+#: ./src/pyams_content/component/gallery/zmi/paragraph.py:169
+msgid "Media(s) successfully added"
+msgstr ""
+
+#: ./src/pyams_content/component/gallery/zmi/__init__.py:58
 msgid "Update gallery properties"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/__init__.py:90
+#: ./src/pyams_content/component/gallery/zmi/__init__.py:85
 msgid "Update gallery contents"
 msgstr ""
 
+#: ./src/pyams_content/component/gallery/zmi/interfaces.py:35
+msgid "Images or videos data"
+msgstr ""
+
 #: ./src/pyams_content/component/gallery/zmi/interfaces.py:36
-msgid "Images or videos data"
-msgstr ""
-
-#: ./src/pyams_content/component/gallery/zmi/interfaces.py:37
 msgid "You can upload a single file or choose to upload a whole ZIP archive"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/interfaces.py:40
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:61
+#: ./src/pyams_content/component/gallery/zmi/interfaces.py:39
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:55
 #: ./src/pyams_content/component/extfile/interfaces/__init__.py:44
 #: ./src/pyams_content/component/illustration/interfaces/__init__.py:54
 #: ./src/pyams_content/component/paragraph/interfaces/video.py:46
@@ -146,8 +159,8 @@
 msgid "Author"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/interfaces.py:41
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:62
+#: ./src/pyams_content/component/gallery/zmi/interfaces.py:40
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:56
 #: ./src/pyams_content/component/extfile/interfaces/__init__.py:45
 #: ./src/pyams_content/component/paragraph/interfaces/video.py:47
 #: ./src/pyams_content/component/paragraph/interfaces/audio.py:47
@@ -155,13 +168,9 @@
 msgid "Name of document's author"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/interfaces.py:44
-msgid "Author comments"
-msgstr ""
-
-#: ./src/pyams_content/component/gallery/zmi/interfaces.py:45
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:66
-msgid "Comments relatives to author's rights management"
+#: ./src/pyams_content/component/gallery/zmi/templates/gallery-media.pt:9
+#: ./src/pyams_content/component/gallery/zmi/templates/gallery-medias.pt:42
+msgid "Zoom image"
 msgstr ""
 
 #: ./src/pyams_content/component/gallery/zmi/templates/gallery-medias.pt:12
@@ -172,27 +181,23 @@
 msgid "Download medias"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/zmi/templates/gallery-medias.pt:42
-msgid "Zoom image"
-msgstr ""
-
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:133
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:119
 msgid "Medias gallery"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:47
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:41
 #: ./src/pyams_content/component/illustration/interfaces/__init__.py:40
 #: ./src/pyams_content/component/illustration/interfaces/__init__.py:103
 msgid "Image or video data"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:48
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:42
 #: ./src/pyams_content/component/illustration/interfaces/__init__.py:41
 #: ./src/pyams_content/component/illustration/interfaces/__init__.py:104
 msgid "Image or video content"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:51
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:45
 #: ./src/pyams_content/component/illustration/interfaces/__init__.py:47
 #: ./src/pyams_content/component/paragraph/interfaces/video.py:43
 #: ./src/pyams_content/component/paragraph/interfaces/audio.py:43
@@ -200,18 +205,18 @@
 msgid "Legend"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:54
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:48
 #: ./src/pyams_content/component/illustration/interfaces/__init__.py:50
 #: ./src/pyams_content/reference/pictograms/interfaces/__init__.py:48
 msgid "Accessibility title"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:55
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:49
 msgid "Alternate title used to describe media content"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:58
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:101
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:52
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:109
 #: ./src/pyams_content/component/extfile/interfaces/__init__.py:40
 #: ./src/pyams_content/component/paragraph/interfaces/audio.py:50
 #: ./src/pyams_content/component/links/interfaces/__init__.py:39
@@ -219,53 +224,49 @@
 msgid "Description"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:65
-msgid "Author's comments"
-msgstr ""
-
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:69
-msgid "Source ID"
-msgstr ""
-
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:70
-msgid "Number used to identify media into it's original source"
-msgstr ""
-
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:73
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:59
 #: ./src/pyams_content/component/extfile/interfaces/__init__.py:89
 #: ./src/pyams_content/component/paragraph/interfaces/audio.py:39
 msgid "Audio data"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:74
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:60
 msgid "Sound file associated with the current media"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:77
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:63
 msgid "Sound title"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:78
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:64
 msgid "Title of associated sound file"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:81
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:67
 msgid "Sound description"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:82
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:68
 msgid "Short description of associated sound file"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:85
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:71
 msgid "Visible media?"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:86
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:72
 msgid "If 'no', this media won't be displayed in front office"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:97
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:83
+msgid "Gallery template"
+msgstr ""
+
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:84
+msgid "Presentation template used for this gallery"
+msgstr ""
+
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:105
 #: ./src/pyams_content/component/keynumber/portlet/interfaces/__init__.py:31
 #: ./src/pyams_content/component/paragraph/zmi/milestone.py:238
 #: ./src/pyams_content/component/paragraph/zmi/container.py:270
@@ -285,22 +286,14 @@
 msgid "Title"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:98
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:106
 msgid "Gallery title, as shown in front-office"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:102
+#: ./src/pyams_content/component/gallery/interfaces/__init__.py:110
 msgid "Gallery description displayed by front-office template"
 msgstr ""
 
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:105
-msgid "Gallery template"
-msgstr ""
-
-#: ./src/pyams_content/component/gallery/interfaces/__init__.py:106
-msgid "Presentation template used for this gallery"
-msgstr ""
-
 #: ./src/pyams_content/component/extfile/__init__.py:172
 #: ./src/pyams_content/component/extfile/__init__.py:176
 msgid "Standard file"