diff --git a/phpBB/docs/events.md b/phpBB/docs/events.md
index f2241228fe..60cc4238d5 100644
--- a/phpBB/docs/events.md
+++ b/phpBB/docs/events.md
@@ -1400,6 +1400,13 @@ posting_editor_subject_after
 * Since: 3.1.0-a2
 * Purpose: Add field (e.g. textbox) to the posting screen after the subject
 
+posting_editor_subject_append
+===
+* Locations:
+    + styles/prosilver/template/posting_editor.html
+* Since: 3.1.10-RC1
+* Purpose: Add field, text, etc. to the posting after the subject text box
+
 posting_editor_subject_before
 ===
 * Locations:
@@ -1407,6 +1414,13 @@ posting_editor_subject_before
 * Since: 3.1.0-a2
 * Purpose: Add field (e.g. textbox) to the posting screen before the subject
 
+posting_editor_subject_prepend
+===
+* Locations:
+    + styles/prosilver/template/posting_editor.html
+* Since: 3.1.10-RC1
+* Purpose: Add field, text, etc. to the posting before the subject text box
+
 posting_editor_submit_buttons
 ===
 * Locations:
diff --git a/phpBB/styles/prosilver/template/posting_editor.html b/phpBB/styles/prosilver/template/posting_editor.html
index 0d526cd72f..d963c98e08 100644
--- a/phpBB/styles/prosilver/template/posting_editor.html
+++ b/phpBB/styles/prosilver/template/posting_editor.html
@@ -23,7 +23,11 @@
 	<!-- IF S_POST_ACTION or S_PRIVMSGS or S_EDIT_DRAFT -->
 	<dl style="clear: left;">
 		<dt><label for="subject">{L_SUBJECT}{L_COLON}</label></dt>
-		<dd><input type="text" name="subject" id="subject" size="45" maxlength="<!-- IF S_NEW_MESSAGE -->120<!-- ELSE -->124<!-- ENDIF -->" tabindex="2" value="{SUBJECT}{DRAFT_SUBJECT}" class="inputbox autowidth" /></dd>
+		<dd>
+			<!-- EVENT posting_editor_subject_prepend -->
+			<input type="text" name="subject" id="subject" size="45" maxlength="<!-- IF S_NEW_MESSAGE -->120<!-- ELSE -->124<!-- ENDIF -->" tabindex="2" value="{SUBJECT}{DRAFT_SUBJECT}" class="inputbox autowidth" />
+			<!-- EVENT posting_editor_subject_append -->
+		</dd>
 	</dl>
 	<!-- IF CAPTCHA_TEMPLATE and S_CONFIRM_CODE -->
 		<!-- DEFINE $CAPTCHA_TAB_INDEX = 3 -->