diff --git a/app/components/group_settings/group/form.tsx b/app/components/group_settings/group/form.tsx
index 3613250c..893bbb9e 100644
--- a/app/components/group_settings/group/form.tsx
+++ b/app/components/group_settings/group/form.tsx
@@ -323,6 +323,15 @@ const Form = ({
               component: EditableCheckbox,
             }}
           />
+          <TwoColField
+            {...{
+              prefix,
+              name: 'billingDetail.legSingle',
+              editMode,
+              validationRules: validationRules.updateGroup,
+              component: EditableCheckbox,
+            }}
+          />
           {editMode && group.deletable && (
             <Row>
               <Col xs="12">
diff --git a/package-lock.json b/package-lock.json
index 180effc4..c6da4685 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11210,6 +11210,11 @@
         }
       }
     },
+    "fflate": {
+      "version": "0.3.11",
+      "resolved": "https://registry.npmjs.org/fflate/-/fflate-0.3.11.tgz",
+      "integrity": "sha512-Rr5QlUeGN1mbOHlaqcSYMKVpPbgLy0AWT/W0EHxA6NGI12yO1jpoui2zBBvU2G824ltM6Ut8BFgfHSBGfkmS0A=="
+    },
     "figgy-pudding": {
       "version": "3.5.2",
       "resolved": "https://registry.npmjs.org/figgy-pudding/-/figgy-pudding-3.5.2.tgz",
@@ -21729,9 +21734,9 @@
       "integrity": "sha512-a7jgnoBSdkcDWIQQwtEgUq4etajwG6+wGIjfC9ARUKwKOdHxJd+utgHTgLn81ETizpsw4xddUS3W8VePedtaIQ=="
     },
     "ssf": {
-      "version": "0.10.3",
-      "resolved": "https://registry.npmjs.org/ssf/-/ssf-0.10.3.tgz",
-      "integrity": "sha512-pRuUdW0WwyB2doSqqjWyzwCD6PkfxpHAHdZp39K3dp/Hq7f+xfMwNAWIi16DyrRg4gg9c/RvLYkJTSawTPTm1w==",
+      "version": "0.11.2",
+      "resolved": "https://registry.npmjs.org/ssf/-/ssf-0.11.2.tgz",
+      "integrity": "sha512-+idbmIXoYET47hH+d7dfm2epdOMUDjqcB4648sTZ+t2JwoyBFL/insLfB/racrDmsKB3diwsDA696pZMieAC5g==",
       "requires": {
         "frac": "~1.1.2"
       }
@@ -24035,6 +24040,16 @@
         }
       }
     },
+    "wmf": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wmf/-/wmf-1.0.2.tgz",
+      "integrity": "sha512-/p9K7bEh0Dj6WbXg4JG0xvLQmIadrner1bi45VMJTfnbVHsc7yIajZyoSoK60/dtVBs12Fm6WkUI5/3WAVsNMw=="
+    },
+    "word": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/word/-/word-0.3.0.tgz",
+      "integrity": "sha512-OELeY0Q61OXpdUfTp+oweA/vtLVg5VDOXh+3he3PNzLGG/y0oylSOC1xRVj0+l4vQ3tj/bB1HVHv1ocXkQceFA=="
+    },
     "word-wrap": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
@@ -24151,17 +24166,20 @@
       }
     },
     "xlsx": {
-      "version": "0.14.5",
-      "resolved": "https://registry.npmjs.org/xlsx/-/xlsx-0.14.5.tgz",
-      "integrity": "sha512-s/5f4/mjeWREmIWZ+HtDfh/rnz51ar+dZ4LWKZU3u9VBx2zLdSIWTdXgoa52/pnZ9Oe/Vu1W1qzcKzLVe+lq4w==",
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/xlsx/-/xlsx-0.17.0.tgz",
+      "integrity": "sha512-bZ36FSACiAyjoldey1+7it50PMlDp1pcAJrZKcVZHzKd8BC/z6TQ/QAN8onuqcepifqSznR6uKnjPhaGt6ig9A==",
       "requires": {
         "adler-32": "~1.2.0",
-        "cfb": "^1.1.2",
+        "cfb": "^1.1.4",
         "codepage": "~1.14.0",
         "commander": "~2.17.1",
         "crc-32": "~1.2.0",
         "exit-on-epipe": "~1.0.1",
-        "ssf": "~0.10.2"
+        "fflate": "^0.3.8",
+        "ssf": "~0.11.2",
+        "wmf": "~1.0.1",
+        "word": "~0.3.0"
       },
       "dependencies": {
         "commander": {
diff --git a/package.json b/package.json
index b85fca77..7d93098a 100644
--- a/package.json
+++ b/package.json
@@ -144,7 +144,7 @@
     "styled-components": "^4.2.0",
     "tether": "^1.4.6",
     "whatwg-fetch": "^3.6.2",
-    "xlsx": "^0.14.3"
+    "xlsx": "^0.17.0"
   },
   "resolutions": {
     "babel-core": "^7.0.0-bridge.0"
diff --git a/yarn.lock b/yarn.lock
index da96dc75..6361481f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5344,13 +5344,12 @@ caseless@~0.12.0:
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
   integrity sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=
 
-cfb@^1.1.2:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/cfb/-/cfb-1.1.3.tgz#05de6816259c8e8bc32713aba905608ee385df66"
-  integrity sha512-joXBW0nMuwV9no7UTMiyVJnQL6XIU3ThXVjFUDHgl9MpILPOomyfaGqC290VELZ48bbQKZXnQ81UT5HouTxHsw==
+cfb@^1.1.4:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/cfb/-/cfb-1.2.0.tgz#6a4d0872b525ed60349e1ef51fb4b0bf73eca9a8"
+  integrity sha512-sXMvHsKCICVR3Naq+J556K+ExBo9n50iKl6LGarlnvuA2035uMlGA/qVrc0wQtow5P1vJEw9UyrKLCbtIKz+TQ==
   dependencies:
     adler-32 "~1.2.0"
-    commander "^2.16.0"
     crc-32 "~1.2.0"
     printj "~1.1.2"
 
@@ -5707,7 +5706,7 @@ comma-separated-tokens@^1.0.0:
   resolved "https://registry.yarnpkg.com/comma-separated-tokens/-/comma-separated-tokens-1.0.7.tgz#419cd7fb3258b1ed838dc0953167a25e152f5b59"
   integrity sha512-Jrx3xsP4pPv4AwJUDWY9wOXGtwPXARej6Xd99h4TUGotmf8APuquKMpK+dnD3UgyxK7OEWaisjZz+3b5jtL6xQ==
 
-commander@2, commander@^2.11.0, commander@^2.16.0, commander@^2.19.0, commander@^2.20.0, commander@^2.5.0, commander@~2.20.3:
+commander@2, commander@^2.11.0, commander@^2.19.0, commander@^2.20.0, commander@^2.5.0, commander@~2.20.3:
   version "2.20.3"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
   integrity sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==
@@ -7927,6 +7926,11 @@ fbjs@^0.8.0, fbjs@^0.8.12, fbjs@^0.8.9:
     setimmediate "^1.0.5"
     ua-parser-js "^0.7.18"
 
+fflate@^0.3.8:
+  version "0.3.11"
+  resolved "https://registry.yarnpkg.com/fflate/-/fflate-0.3.11.tgz#2c440d7180fdeb819e64898d8858af327b042a5d"
+  integrity sha512-Rr5QlUeGN1mbOHlaqcSYMKVpPbgLy0AWT/W0EHxA6NGI12yO1jpoui2zBBvU2G824ltM6Ut8BFgfHSBGfkmS0A==
+
 figgy-pudding@^3.5.1:
   version "3.5.1"
   resolved "https://registry.yarnpkg.com/figgy-pudding/-/figgy-pudding-3.5.1.tgz#862470112901c727a0e495a80744bd5baa1d6790"
@@ -15006,10 +15010,10 @@ spy-on-component@^1.1.0:
   resolved "https://registry.yarnpkg.com/spy-on-component/-/spy-on-component-1.1.2.tgz#70cec3a0b87dfb9d5356e288135fd349d138d407"
   integrity sha512-ndyPLiqAPcDETg2VO0TM35uq6kLKvhss2ILBV+jfXZz55lRk5zphmbrHKwwIu9++n56+56KLbY/zhJnPF6Yqyg==
 
-ssf@~0.10.2:
-  version "0.10.2"
-  resolved "https://registry.yarnpkg.com/ssf/-/ssf-0.10.2.tgz#65b2b4fcdfd967bc8e8383a41349009893115976"
-  integrity sha512-rDhAPm9WyIsY8eZEKyE8Qsotb3j/wBdvMWBUsOhJdfhKGLfQidRjiBUV0y/MkyCLiXQ38FG6LWW/VYUtqlIDZQ==
+ssf@~0.11.2:
+  version "0.11.2"
+  resolved "https://registry.yarnpkg.com/ssf/-/ssf-0.11.2.tgz#0b99698b237548d088fc43cdf2b70c1a7512c06c"
+  integrity sha512-+idbmIXoYET47hH+d7dfm2epdOMUDjqcB4648sTZ+t2JwoyBFL/insLfB/racrDmsKB3diwsDA696pZMieAC5g==
   dependencies:
     frac "~1.1.2"
 
@@ -16507,11 +16511,21 @@ widest-line@^2.0.0:
   dependencies:
     string-width "^2.1.1"
 
+wmf@~1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/wmf/-/wmf-1.0.2.tgz#7d19d621071a08c2bdc6b7e688a9c435298cc2da"
+  integrity sha512-/p9K7bEh0Dj6WbXg4JG0xvLQmIadrner1bi45VMJTfnbVHsc7yIajZyoSoK60/dtVBs12Fm6WkUI5/3WAVsNMw==
+
 word-wrap@~1.2.3:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
   integrity sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==
 
+word@~0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/word/-/word-0.3.0.tgz#8542157e4f8e849f4a363a288992d47612db9961"
+  integrity sha512-OELeY0Q61OXpdUfTp+oweA/vtLVg5VDOXh+3he3PNzLGG/y0oylSOC1xRVj0+l4vQ3tj/bB1HVHv1ocXkQceFA==
+
 wordwrap@~0.0.2:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
@@ -16600,18 +16614,21 @@ xhr@^2.0.1:
     parse-headers "^2.0.0"
     xtend "^4.0.0"
 
-xlsx@^0.14.3:
-  version "0.14.5"
-  resolved "https://registry.yarnpkg.com/xlsx/-/xlsx-0.14.5.tgz#3637e914d791bdca7382816e173f7d725ed0e0d2"
-  integrity sha512-s/5f4/mjeWREmIWZ+HtDfh/rnz51ar+dZ4LWKZU3u9VBx2zLdSIWTdXgoa52/pnZ9Oe/Vu1W1qzcKzLVe+lq4w==
+xlsx@^0.17.0:
+  version "0.17.0"
+  resolved "https://registry.yarnpkg.com/xlsx/-/xlsx-0.17.0.tgz#028176a0140967dcee1817d221678461e47481c8"
+  integrity sha512-bZ36FSACiAyjoldey1+7it50PMlDp1pcAJrZKcVZHzKd8BC/z6TQ/QAN8onuqcepifqSznR6uKnjPhaGt6ig9A==
   dependencies:
     adler-32 "~1.2.0"
-    cfb "^1.1.2"
+    cfb "^1.1.4"
     codepage "~1.14.0"
     commander "~2.17.1"
     crc-32 "~1.2.0"
     exit-on-epipe "~1.0.1"
-    ssf "~0.10.2"
+    fflate "^0.3.8"
+    ssf "~0.11.2"
+    wmf "~1.0.1"
+    word "~0.3.0"
 
 xml-name-validator@^3.0.0:
   version "3.0.0"