diff --git a/docs/package.json b/docs/package.json
index fc8f322a..a53e7b06 100755
--- a/docs/package.json
+++ b/docs/package.json
@@ -20,5 +20,7 @@
     "vuepress-plugin-check-md": "^0.0.2"
   },
   "dependencies": {
+    "qrcode": "^1.4.4",
+    "vue-qrcode": "^0.3.5"
   }
 }
diff --git a/docs/src/.vuepress/config.js b/docs/src/.vuepress/config.js
index 3462353b..dbf522ca 100755
--- a/docs/src/.vuepress/config.js
+++ b/docs/src/.vuepress/config.js
@@ -1,96 +1,98 @@
 const { description } = require('../../package')
 
 module.exports = {
-  title: 'FacilMap',
-  description: description,
-  head: [
-    ['meta', { name: 'theme-color', content: '#3eaf7c' }],
-    ['meta', { name: 'apple-mobile-web-app-capable', content: 'yes' }],
-    ['meta', { name: 'apple-mobile-web-app-status-bar-style', content: 'black' }]
-  ],
-  themeConfig: {
-    repo: '',
-    editLinks: false,
-    docsDir: '',
-    editLinkText: '',
-    lastUpdated: false,
-    nav: [
-      {
-        text: 'Users',
-        link: '/users/',
-      },
-      {
-        text: 'Administrators',
-        link: '/administrators/'
-      },
-      {
-        text: 'Developers',
-        link: '/developers/'
-      }
-    ],
-    sidebar: {
-      '/users/': [
-        {
-          title: "Overview",
-          collapsable: false,
-          children: [
-            "",
-            "help/"
-          ]
-        },
-        {
-          title: 'General functions',
-          collapsable: false,
-          children: [
-            "ui/",
-            "layers/",
-            "search/",
-            "route/",
-            "click-marker/",
-            "files/",
-            "locate/",
-            "hash/",
-            "privacy/"
-          ]
-        },
-        {
-          title: 'Collaborative maps',
-          collapsable: false,
-          children: [
-            "collaborative/",
-            "markers/",
-            "lines/",
-            "types/",
-            "legend/",
-            "views/",
-            "filters/",
-            "history/",
-            "export/",
-            "import/"
-          ]
-        },
-      ],
-      '/administrators/': [
-        {
-          title: 'Administrator guide',
-          collapsable: false,
-          children: [
-            "",
-            "embed",
-            "server"
-          ]
-        }
-      ]
-    }
-  },
-  plugins: [
-    '@vuepress/plugin-back-to-top',
-    '@vuepress/plugin-medium-zoom',
-    'check-md'
-  ],
-  markdown: {
-    extendMarkdown: (md) => {
-      md.use(require("markdown-it-footnote"));
-    }
-  }
+	title: 'FacilMap',
+	description: description,
+	head: [
+		['meta', { name: 'theme-color', content: '#3eaf7c' }],
+		['meta', { name: 'apple-mobile-web-app-capable', content: 'yes' }],
+		['meta', { name: 'apple-mobile-web-app-status-bar-style', content: 'black' }]
+	],
+	themeConfig: {
+		repo: '',
+		editLinks: false,
+		docsDir: '',
+		editLinkText: '',
+		lastUpdated: false,
+		nav: [
+			{
+				text: 'Users',
+				link: '/users/',
+			},
+			{
+				text: 'Administrators',
+				link: '/administrators/'
+			},
+			{
+				text: 'Developers',
+				link: '/developers/'
+			}
+		],
+		sidebar: {
+			'/users/': [
+				{
+					title: "Overview",
+					collapsable: false,
+					children: [
+						"",
+						"help/",
+						"contribute/"
+					]
+				},
+				{
+					title: 'General functions',
+					collapsable: false,
+					children: [
+						"ui/",
+						"layers/",
+						"search/",
+						"route/",
+						"click-marker/",
+						"files/",
+						"locate/",
+						"hash/",
+						"privacy/"
+					]
+				},
+				{
+					title: 'Collaborative maps',
+					collapsable: false,
+					children: [
+						"collaborative/",
+						"markers/",
+						"lines/",
+						"types/",
+						"legend/",
+						"views/",
+						"filters/",
+						"history/",
+						"export/",
+						"import/",
+						"map-settings/"
+					]
+				},
+			],
+			'/administrators/': [
+				{
+					title: 'Administrator guide',
+					collapsable: false,
+					children: [
+						"",
+						"embed",
+						"server"
+					]
+				}
+			]
+		}
+	},
+	plugins: [
+		'@vuepress/plugin-back-to-top',
+		'@vuepress/plugin-medium-zoom',
+		'check-md'
+	],
+	markdown: {
+		extendMarkdown: (md) => {
+			md.use(require("markdown-it-footnote"));
+		}
+	}
 }
diff --git a/docs/src/.vuepress/enhanceApp.js b/docs/src/.vuepress/enhanceApp.js
index 8452a868..a0f11e09 100755
--- a/docs/src/.vuepress/enhanceApp.js
+++ b/docs/src/.vuepress/enhanceApp.js
@@ -1,14 +1,8 @@
-/**
- * Client app enhancement file.
- *
- * https://v1.vuepress.vuejs.org/guide/basic-config.html#app-level-enhancements
- */
+if (typeof window !== "undefined")
+	window.global = window;
 
-export default ({
-  Vue, // the version of Vue being used in the VuePress app
-  options, // the options for the root Vue instance
-  router, // the router instance for the app
-  siteData // site metadata
-}) => {
-  // ...apply enhancements for the site.
-}
+const qrcode = require("vue-qrcode").default;
+
+export default ({ Vue, options, router, siteData }) => {
+	Vue.component("qrcode", qrcode);
+};
diff --git a/docs/src/users/contribute/README.md b/docs/src/users/contribute/README.md
new file mode 100644
index 00000000..733ab27f
--- /dev/null
+++ b/docs/src/users/contribute/README.md
@@ -0,0 +1,24 @@
+# Support FacilMap
+
+FacilMap is a non-commercial free and open-source project developed by [Candid Dauth](https://github.com/cdauth).
+
+You are welcome to contribute code, improve the documentation or raise ideas on [GitHub](https://github.com/FacilMap/facilmap).
+
+## Contribute financially
+
+Financial contributions are very much appreciated and can be sent through the following channels:
+
+<div style="display: flex; flex-wrap: wrap">
+	<a href="https://www.paypal.com/donate?hosted_button_id=FWR59UXY6HGGS" target="_blank" style="display: flex; flex-direction: column; align-items: center">
+		<ClientOnly><qrcode value="https://www.paypal.com/donate?hosted_button_id=FWR59UXY6HGGS" :width="164"></qrcode></ClientOnly>
+		PayPal
+	</a>
+	<a href="https://www.patreon.com/facilmap" target="_blank" style="display: flex; flex-direction: column; align-items: center">
+		<ClientOnly><qrcode value="https://www.patreon.com/facilmap" :width="164"></qrcode></ClientOnly>
+		Patreon
+	</a>
+	<a href="bitcoin:1PEfenaGXC9qNGQSuL5o6f6doZMYXRFiCv" style="display: flex; flex-direction: column; align-items: center">
+		<ClientOnly><qrcode value="bitcoin:1PEfenaGXC9qNGQSuL5o6f6doZMYXRFiCv" :width="164"></qrcode></ClientOnly>
+		Bitcoin
+	</a>
+</div>
\ No newline at end of file
diff --git a/docs/yarn.lock b/docs/yarn.lock
index 6237d595..db21cfcc 100644
--- a/docs/yarn.lock
+++ b/docs/yarn.lock
@@ -1684,7 +1684,7 @@ balanced-match@^1.0.0:
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
   integrity sha1-ibTRmasr7kneFk6gK4nORi1xt2c=
 
-base64-js@^1.0.2:
+base64-js@^1.0.2, base64-js@^1.3.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.5.1.tgz#1b1b440160a5bf7ad40b650f095963481903930a"
   integrity sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==
@@ -1911,7 +1911,25 @@ browserslist@^4.0.0, browserslist@^4.12.0, browserslist@^4.14.5, browserslist@^4
     escalade "^3.1.1"
     node-releases "^1.1.70"
 
-buffer-from@^1.0.0:
+buffer-alloc-unsafe@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz#bd7dc26ae2972d0eda253be061dba992349c19f0"
+  integrity sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg==
+
+buffer-alloc@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc/-/buffer-alloc-1.2.0.tgz#890dd90d923a873e08e10e5fd51a57e5b7cce0ec"
+  integrity sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==
+  dependencies:
+    buffer-alloc-unsafe "^1.1.0"
+    buffer-fill "^1.0.0"
+
+buffer-fill@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/buffer-fill/-/buffer-fill-1.0.0.tgz#f8f78b76789888ef39f205cd637f68e702122b2c"
+  integrity sha1-+PeLdniYiO858gXNY39o5wISKyw=
+
+buffer-from@^1.0.0, buffer-from@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
   integrity sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==
@@ -1940,6 +1958,14 @@ buffer@^4.3.0:
     ieee754 "^1.1.4"
     isarray "^1.0.0"
 
+buffer@^5.4.3:
+  version "5.7.1"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.7.1.tgz#ba62e7c13133053582197160851a8f648e99eed0"
+  integrity sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==
+  dependencies:
+    base64-js "^1.3.1"
+    ieee754 "^1.1.13"
+
 builtin-status-codes@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
@@ -2914,6 +2940,11 @@ diffie-hellman@^5.0.0:
     miller-rabin "^4.0.0"
     randombytes "^2.0.0"
 
+dijkstrajs@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/dijkstrajs/-/dijkstrajs-1.0.1.tgz#d3cd81221e3ea40742cfcde556d4e99e98ddc71b"
+  integrity sha1-082BIh4+pAdCz83lVtTpnpjdxxs=
+
 dir-glob@^2.0.0, dir-glob@^2.2.2:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/dir-glob/-/dir-glob-2.2.2.tgz#fa09f0694153c8918b18ba0deafae94769fc50c4"
@@ -4067,7 +4098,7 @@ icss-utils@^4.1.0:
   dependencies:
     postcss "^7.0.14"
 
-ieee754@^1.1.4:
+ieee754@^1.1.13, ieee754@^1.1.4:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.2.1.tgz#8eb7a10a63fff25d15a57b001586d177d1b0d352"
   integrity sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==
@@ -5669,6 +5700,11 @@ pkg-dir@^4.1.0:
   dependencies:
     find-up "^4.0.0"
 
+pngjs@^3.3.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/pngjs/-/pngjs-3.4.0.tgz#99ca7d725965fb655814eaf65f38f12bbdbf555f"
+  integrity sha512-NCrCHhWmnQklfH4MtJMRjZ2a8c80qXeMlQMv2uVp9ISJMTt562SbGd6n2oq0PaPgKm7Z6pL9E2UlLIhC+SHL3w==
+
 portfinder@^1.0.13, portfinder@^1.0.26:
   version "1.0.28"
   resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.28.tgz#67c4622852bd5374dd1dd900f779f53462fac778"
@@ -6157,6 +6193,19 @@ q@^1.1.2:
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
   integrity sha1-fjL3W0E4EpHQRhHxvxQQmsAGUdc=
 
+qrcode@^1.4.4:
+  version "1.4.4"
+  resolved "https://registry.yarnpkg.com/qrcode/-/qrcode-1.4.4.tgz#f0c43568a7e7510a55efc3b88d9602f71963ea83"
+  integrity sha512-oLzEC5+NKFou9P0bMj5+v6Z40evexeE29Z9cummZXZ9QXyMr3lphkURzxjXgPJC5azpxcshoDWV1xE46z+/c3Q==
+  dependencies:
+    buffer "^5.4.3"
+    buffer-alloc "^1.2.0"
+    buffer-from "^1.1.1"
+    dijkstrajs "^1.0.1"
+    isarray "^2.0.1"
+    pngjs "^3.3.0"
+    yargs "^13.2.4"
+
 qs@6.7.0:
   version "6.7.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.7.0.tgz#41dc1a015e3d581f1621776be31afb2876a9b1bc"
@@ -7605,6 +7654,11 @@ vue-loader@^15.7.1:
     vue-hot-reload-api "^2.3.0"
     vue-style-loader "^4.1.0"
 
+vue-qrcode@^0.3.5:
+  version "0.3.5"
+  resolved "https://registry.yarnpkg.com/vue-qrcode/-/vue-qrcode-0.3.5.tgz#d95bd81fea0c7f007f4e69244203d0eee2d573a5"
+  integrity sha512-AZJ+HzhOFokHuMVVwUIjG1FCWT1vJqn/Ro8XnQbyNlZTlQ8l4040JawVqUvTql3AdjJnI9bXaCTPplN502SnFw==
+
 vue-router@^3.4.5:
   version "3.5.1"
   resolved "https://registry.yarnpkg.com/vue-router/-/vue-router-3.5.1.tgz#edf3cf4907952d1e0583e079237220c5ff6eb6c9"
@@ -7974,7 +8028,7 @@ yargs-parser@^13.1.2:
     camelcase "^5.0.0"
     decamelize "^1.2.0"
 
-yargs@^13.3.2:
+yargs@^13.2.4, yargs@^13.3.2:
   version "13.3.2"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-13.3.2.tgz#ad7ffefec1aa59565ac915f82dccb38a9c31a2dd"
   integrity sha512-AX3Zw5iPruN5ie6xGRIDgqkT+ZhnRlZMLMHAs8tg7nRruy2Nb+i5o9bwghAogtM08q1dpr2LVoS8KSTMYpWXUw==