We must prompt the user before giving them support the first time

indra/newview/app_settings/settings_ascent.xml

@@ -950,9 +950,9 @@ Changing this setting only affects new text.</string>
 			<key>Persist</key>
 			<integer>1</integer>
 			<key>Type</key>
-			<string>Boolean</string>
+			<string>S32</string>
 			<key>Value</key>
-			<boolean>1</boolean>
+			<boolean>-1</boolean>
 		</map>
 		<key>WarnRecommendedUpdate</key>
 		<map>

indra/newview/llimpanel.cpp

@@ -575,8 +575,19 @@ BOOL LLFloaterIMPanel::postBuild()
 		}
 		break;
 		case SUPPORT_SESSION:
-			getChildView("Support Check")->setVisible(true);
+		{
+			auto support = getChildView("Support Check");
+			support->setVisible(true);
+			auto control = gSavedSettings.getControl(support->getControlName());
+			if (control->get().asInteger() == -1)
+			{
+				LLNotificationsUtil::add("SupportChatShowInfo", LLSD(), LLSD(), [control](const LLSD& p, const LLSD& f)
+				{
+					control->set(!LLNotificationsUtil::getSelectedOption(p, f));
+				});
+			}
 			// Singu Note: We could make a button feature for dumping Help->About contents for support, too.
+		}
 		break;
 		default:
 		break;

indra/newview/skins/default/xui/en-us/notifications.xml

@@ -11460,6 +11460,17 @@ Do you wish to export anyway?
 Object successfully exported to: [FILENAME]
   </notification>
 
+  <notification
+   icon="alertmodal.tga"
+   name="SupportChatShowInfo"
+   type="alertmodal">
+You have just entered a [SHORT_APP_NAME] support group chat. To help provide support, [SHORT_APP_NAME] can prepend useful information to your messages. This can easily be toggled later via the checkbox in the support group chat.
+  <usetemplate
+   name="okcancelbuttons"
+   notext="Don't Bother"
+   yestext="I Consent!"/>
+  </notification>
+
   <notification
     icon="notifytip.tga"
     label="Update Available"