diff --git a/gui/theme/common/landscape.xml b/gui/theme/common/landscape.xml
index 5d3f5ea..4be49ea 100755
--- a/gui/theme/common/landscape.xml
+++ b/gui/theme/common/landscape.xml
@@ -372,7 +372,10 @@
 					<condition var1="tw_selectimage" var2="1"/>
 					<condition var1="tw_filename" op="modified"/>
 				</conditions>
-				<action function="page">flashimage_confirm</action>
+				<actions>
+					<action function="set">tw_is_slot_part=0</action>
+					<action function="page">flashimage_confirm</action>
+				</actions>
 			</action>
 
 			<action>
@@ -711,6 +714,30 @@
 				<listtype name="flashimg"/>
 			</partitionlist>
 
+			<button style="checkbox">
+				<conditions>
+					<condition var1="tw_is_slot_part" op="=" var2="1"/>
+					<condition var1="tw_flash_both_slots" op="=" var2="0"/>
+					<condition var1="tw_has_boot_slots" var2="1"/>
+				</conditions>
+				<placement x="%col1_x_left%" y="%row14a_y%" textplacement="6"/>
+				<text>{@flash_ab_both_slots=Flash to both slots}</text>
+				<image resource="checkbox_false"/>
+				<action function="set">tw_flash_both_slots=1</action>
+			</button>
+
+			<button style="checkbox">
+				<conditions>
+					<condition var1="tw_is_slot_part" op="=" var2="1"/>
+					<condition var1="tw_flash_both_slots" op="=" var2="1"/>
+					<condition var1="tw_has_boot_slots" var2="1"/>
+				</conditions>
+				<placement x="%col1_x_left%" y="%row14a_y%" textplacement="6"/>
+				<text>{@flash_ab_both_slots=Flash to both slots}</text>
+				<image resource="checkbox_true"/>
+				<action function="set">tw_flash_both_slots=0</action>
+			</button>
+
 			<slider>
 				<text>{@swipe_flash=Swipe to confirm Flash}</text>
 				<actions>
diff --git a/gui/theme/common/languages/en.xml b/gui/theme/common/languages/en.xml
index 868dbea..a6074fd 100755
--- a/gui/theme/common/languages/en.xml
+++ b/gui/theme/common/languages/en.xml
@@ -740,6 +740,7 @@
 		<string name="unmount_system_err">Failed unmounting System</string>
 		<string name="flash_ab_inactive">Flashing A/B zip to inactive slot: {1}</string>
 		<string name="flash_ab_reboot">To flash additional zips, please reboot recovery to switch to the updated slot.</string>
+		<string name="flash_ab_both_slots">Flash to both slots</string>
 		<string name="ozip_decrypt_decryption">Starting Ozip Decryption...</string>
 		<string name="ozip_decrypt_finish">Ozip Decryption Finished!</string>
 		<string name="restore_system_context">Unable to get default context for {1} -- Android may not boot.</string>
diff --git a/gui/theme/common/portrait.xml b/gui/theme/common/portrait.xml
index 4bcaf57..80ee07d 100755
--- a/gui/theme/common/portrait.xml
+++ b/gui/theme/common/portrait.xml
@@ -329,7 +329,10 @@
 					<condition var1="tw_selectimage" var2="1"/>
 					<condition var1="tw_filename" op="modified"/>
 				</conditions>
-				<action function="page">flashimage_confirm</action>
+				<actions>
+					<action function="set">tw_is_slot_part=0</action>
+					<action function="page">flashimage_confirm</action>
+				</actions>
 			</action>
 
 			<action>
@@ -662,6 +665,30 @@
 				<listtype name="flashimg"/>
 			</partitionlist>
 
+			<button style="checkbox">
+				<conditions>
+					<condition var1="tw_is_slot_part" op="=" var2="1"/>
+					<condition var1="tw_flash_both_slots" op="=" var2="0"/>
+					<condition var1="tw_has_boot_slots" var2="1"/>
+				</conditions>
+				<placement x="%indent%" y="%row19a_y%" textplacement="6"/>
+				<text>{@flash_ab_both_slots=Flash to both slots}</text>
+				<image resource="checkbox_false"/>
+				<action function="set">tw_flash_both_slots=1</action>
+			</button>
+
+			<button style="checkbox">
+				<conditions>
+					<condition var1="tw_is_slot_part" op="=" var2="1"/>
+					<condition var1="tw_flash_both_slots" op="=" var2="1"/>
+					<condition var1="tw_has_boot_slots" var2="1"/>
+				</conditions>
+				<placement x="%indent%" y="%row19a_y%" textplacement="6"/>
+				<text>{@flash_ab_both_slots=Flash to both slots}</text>
+				<image resource="checkbox_true"/>
+				<action function="set">tw_flash_both_slots=0</action>
+			</button>
+
 			<slider>
 				<text>{@swipe_flash=Swipe to confirm Flash}</text>
 				<actions>
diff --git a/gui/theme/common/watch.xml b/gui/theme/common/watch.xml
index 4ff783a..8b8fdd7 100755
--- a/gui/theme/common/watch.xml
+++ b/gui/theme/common/watch.xml
@@ -442,7 +442,10 @@
 					<condition var1="tw_selectimage" var2="1"/>
 					<condition var1="tw_filename" op="modified"/>
 				</conditions>
-				<action function="page">flashimage_type</action>
+				<actions>
+					<action function="set">tw_is_slot_part=0</action>
+					<action function="page">flashimage_type</action>
+				</actions>
 			</action>
 
 			<action>
@@ -860,6 +863,30 @@
 				<listtype name="flashimg"/>
 			</partitionlist>
 
+			<button style="checkbox">
+				<conditions>
+					<condition var1="tw_is_slot_part" op="=" var2="1"/>
+					<condition var1="tw_flash_both_slots" op="=" var2="0"/>
+					<condition var1="tw_has_boot_slots" var2="1"/>
+				</conditions>
+				<placement x="%col2_x_left%" y="%row11_y%" textplacement="6"/>
+				<text>{@flash_ab_both_slots=Flash to both slots}</text>
+				<image resource="checkbox_false"/>
+				<action function="set">tw_flash_both_slots=1</action>
+			</button>
+
+			<button style="checkbox">
+				<conditions>
+					<condition var1="tw_is_slot_part" op="=" var2="1"/>
+					<condition var1="tw_flash_both_slots" op="=" var2="1"/>
+					<condition var1="tw_has_boot_slots" var2="1"/>
+				</conditions>
+				<placement x="%col2_x_left%" y="%row11_y%" textplacement="6"/>
+				<text>{@flash_ab_both_slots=Flash to both slots}</text>
+				<image resource="checkbox_true"/>
+				<action function="set">tw_flash_both_slots=0</action>
+			</button>
+
 			<button>
 				<placement x="%col1_x_left%" y="%row11_y%"/>
 				<highlight color="%highlight_color%"/>