diff --git a/phpBB/docs/events.md b/phpBB/docs/events.md
index 240ed07b42..6bbaed91b8 100644
--- a/phpBB/docs/events.md
+++ b/phpBB/docs/events.md
@@ -694,6 +694,13 @@ posting_editor_buttons_before
 * Since: 3.1.0-a3
 * Purpose: Add content before the BBCode posting buttons
 
+posting_editor_buttons_custom_tags_before
+===
+* Locations:
+    + styles/prosilver/template/posting_buttons.html
+* Since: 3.1.2-RC1
+* Purpose: Add content inside the BBCode posting buttons and before the customs BBCode
+
 posting_editor_message_after
 ===
 * Locations:
diff --git a/phpBB/styles/prosilver/template/posting_buttons.html b/phpBB/styles/prosilver/template/posting_buttons.html
index 3dad6606bb..1555b12369 100644
--- a/phpBB/styles/prosilver/template/posting_buttons.html
+++ b/phpBB/styles/prosilver/template/posting_buttons.html
@@ -92,6 +92,9 @@
 		<!-- ENDIF -->
 	</select>
 	<input type="button" class="button2 bbcode-color" name="bbpalette" id="bbpalette" value="{L_FONT_COLOR}" onclick="change_palette();" title="{L_BBCODE_S_HELP}" />
+
+	<!-- EVENT posting_editor_buttons_custom_tags_before -->
+
 	<!-- BEGIN custom_tags -->
 		<input type="button" class="button2 bbcode-{custom_tags.BBCODE_TAG_CLEAN}" name="addbbcode{custom_tags.BBCODE_ID}" value="{custom_tags.BBCODE_TAG}" onclick="bbstyle({custom_tags.BBCODE_ID})" title="{custom_tags.BBCODE_HELPLINE}" />
 	<!-- END custom_tags -->