diff --git a/MUNGA_L4/L4VB16.cpp b/MUNGA_L4/L4VB16.cpp
index cb888e2..cbf0f3f 100644
--- a/MUNGA_L4/L4VB16.cpp
+++ b/MUNGA_L4/L4VB16.cpp
@@ -3988,10 +3988,18 @@ static RadarPlacement
 		// camera station defaults to the bottom-left corner instead.
 		// L4RADARPOS still overrides either way.
 		//
-		cached = Application::IsCameraStation()
-			? RadarBottomLeft : RadarBottomCenter;
+		// A pod and a Live Cam want this display in different places, and
+		// the same host does both from one menu - so they get a knob each
+		// and neither has to be edited when the role changes. L4RADARPOS
+		// places the pod's radar, L4MAPPOS the camera's map. Defaults
+		// differ too: dead centre under the viewscreen is where the
+		// cabinet had it, and the worst place to put a panel on a shot.
+		const Logical camera_station = Application::IsCameraStation();
+		const char *variable = camera_station ? "L4MAPPOS" : "L4RADARPOS";
 
-		const char *text = getenv("L4RADARPOS");
+		cached = camera_station ? RadarBottomLeft : RadarBottomCenter;
+
+		const char *text = getenv(variable);
 		if (text != NULL)
 		{
 			for (int i = 0; i < (int) (sizeof(names) / sizeof(names[0])); ++i)
@@ -4012,8 +4020,9 @@ static RadarPlacement
 			"left side, centred",
 			"right side, centred"
 		};
-		DEBUG_STREAM << "SVGA16: radar on the " << described[cached]
-			<< "\n" << std::flush;
+		DEBUG_STREAM << "SVGA16: " << (camera_station ? "map" : "radar")
+			<< " on the " << described[cached]
+			<< " (" << variable << ")\n" << std::flush;
 	}
 	return (RadarPlacement) cached;
 }
@@ -4051,14 +4060,23 @@ void
 			DisplayScalePercent("L4MFDSCALE_LL", group);
 		percent[SplitMFDLowerRight] =
 			DisplayScalePercent("L4MFDSCALE_LR", group);
-		percent[SplitMap] = DisplayScalePercent("L4RADARSCALE", 100);
+		//
+		// Sized by its own knob for the same reason it is placed by one: a
+		// camera's map and a pod's radar are the same pane doing different
+		// jobs, and the host switches between them from the menu without
+		// touching this file.
+		//
+		percent[SplitMap] = Application::IsCameraStation()
+			? DisplayScalePercent("L4MAPSCALE", 100)
+			: DisplayScalePercent("L4RADARSCALE", 100);
 
 		DEBUG_STREAM << "SVGA16: secondary displays at UL "
 			<< percent[SplitMFDUpperLeft] << "% UC "
 			<< percent[SplitMFDUpperCenter] << "% UR "
 			<< percent[SplitMFDUpperRight] << "% LL "
 			<< percent[SplitMFDLowerLeft] << "% LR "
-			<< percent[SplitMFDLowerRight] << "% radar "
+			<< percent[SplitMFDLowerRight] << "% "
+			<< (Application::IsCameraStation() ? "map " : "radar ")
 			<< percent[SplitMap] << "%\n" << std::flush;
 	}
 
diff --git a/RP_L4/RPL4ENVIRON.cpp b/RP_L4/RPL4ENVIRON.cpp
index 09f8d14..ad65440 100644
--- a/RP_L4/RPL4ENVIRON.cpp
+++ b/RP_L4/RPL4ENVIRON.cpp
@@ -165,6 +165,19 @@ namespace
 "# both of them, and it grows from the middle in both directions).\n"
 "L4RADARPOS=CENTER\n"
 "\n"
+"# The same pane as a LIVE CAM, which is a different job: no pod, so no\n"
+"# instrument MFDs beside it, the map lies down landscape instead of the\n"
+"# pod's portrait mounting, and dead centre is the worst place to put a\n"
+"# panel on a shot. It therefore has its own position and size, taking\n"
+"# the same values as L4RADARPOS / L4RADARSCALE above and defaulting to\n"
+"# the bottom-left corner.\n"
+"#\n"
+"# Two settings rather than one on purpose: the host picks Racer or Live\n"
+"# Cam from the setup screen, so switching role must not mean editing\n"
+"# this file. Each role remembers its own.\n"
+"L4MAPPOS=LEFT\n"
+"L4MAPSCALE=100\n"
+"\n"
 "# The Winners Circle: at the end of a race the finishers are stood on\n"
 "# the award platform in finishing order, with each pilot's callsign on\n"
 "# the plate beside their spot, and held there for a few seconds before\n"