diff --git a/src/mame/layout/kim1.lay b/src/mame/layout/kim1.lay
index 16fd6aea794..bfa2a21ee08 100644
--- a/src/mame/layout/kim1.lay
+++ b/src/mame/layout/kim1.lay
@@ -279,6 +279,25 @@ license:CC0-1.0
 		</text>
 	</element>
 
+	<element name="swsst">
+		<rect>
+			<bounds left="0" top="0" right="1" bottom="1" />
+			<color red="0.25" green="0.25" blue="0.25" />
+		</rect>
+		<rect state="0">
+			<bounds left="0.05" top="0.05" right="0.95" bottom="0.95" />
+			<color red="0.4" green="0.4" blue="0.4" />
+		</rect>
+		<rect state="1">
+			<bounds left="0.05" top="0.05" right="0.95" bottom="0.95" />
+			<color red="0.1" green="0.1" blue="0.1" />
+		</rect>
+		<text string="SST">
+			<bounds left="0.1" top="0.15" right="0.9" bottom="0.85" />
+			<color red="1" green="1" blue="1" />
+		</text>
+	</element>
+
 	<group name="leds">
 		<!-- LED address display -->
 		<element name="digit0" ref="digit">
@@ -313,6 +332,9 @@ license:CC0-1.0
 		<element ref="keyrs" inputtag="SPECIAL" inputmask="0x02">
 			<bounds x="10" y="0" width="4" height="4" />
 		</element>
+		<element ref="swsst" inputtag="SPECIAL" inputmask="0x04">
+			<bounds x="15" y="0" width="4" height="4" />
+		</element>
 
 		<element ref="keyad" inputtag="ROW2" inputmask="0x10">
 			<bounds x="0" y="5" width="4" height="4" />
@@ -381,12 +403,14 @@ license:CC0-1.0
 	</group>
 
 	<view name="Keypad and LEDs">
+		<bounds left="0" top="0" right="134" bottom="234" />
+
 		<group ref="leds">
-			<bounds x="0" y="0" width="114" height="25" />
+			<bounds x="10" y="10" width="114" height="25" />
 		</group>
 
 		<group ref="keypad">
-			<bounds x="0" y="40" width="114" height="174" />
+			<bounds x="10" y="50" width="114" height="174" />
 		</group>
 	</view>
 
@@ -397,16 +421,18 @@ license:CC0-1.0
 	</view>
 
 	<view name="Keypad, LEDs and Screen">
+		<bounds left="0" top="0" right="446" bottom="234" />
+
 		<group ref="leds">
-			<bounds x="0" y="0" width="114" height="25" />
+			<bounds x="10" y="10" width="114" height="25" />
 		</group>
 
 		<group ref="keypad">
-			<bounds x="0" y="39" width="114" height="174" />
+			<bounds x="10" y="50" width="114" height="174" />
 		</group>
 
 		<screen index="0">
-			<bounds x="128" y="0" width="284" height="213" />
+			<bounds x="134" y="0" width="312" height="234" />
 		</screen>
 	</view>
 </mamelayout>