diff --git a/src/core/index.js b/src/core/index.js
index abc0ba36..76a0d705 100644
--- a/src/core/index.js
+++ b/src/core/index.js
@@ -58,13 +58,12 @@ module.exports = function SwaggerUI(opts) {
     plugins: [
     ],
 
+    // Initial state
+    initialState: { },
+
     // Inline Plugin
     fn: { },
     components: { },
-    state: { },
-
-    // Override some core configs... at your own risk
-    store: { },
   }
 
   let queryConfig = parseSearch()
@@ -74,12 +73,12 @@ module.exports = function SwaggerUI(opts) {
 
   const constructorConfig = deepExtend({}, defaults, opts, queryConfig)
 
-  const storeConfigs = deepExtend({}, constructorConfig.store, {
+  const storeConfigs = {
     system: {
       configs: constructorConfig.configs
     },
     plugins: constructorConfig.presets,
-    state: {
+    state: deepExtend({
       layout: {
         layout: constructorConfig.layout,
         filter: constructorConfig.filter
@@ -88,8 +87,8 @@ module.exports = function SwaggerUI(opts) {
         spec: "",
         url: constructorConfig.url
       }
-    }
-  })
+    }, constructorConfig.initialState)
+  }
 
   let inlinePlugin = ()=> {
     return {
diff --git a/src/core/presets/base.js b/src/core/presets/base.js
index ec005b37..b6c11f9f 100644
--- a/src/core/presets/base.js
+++ b/src/core/presets/base.js
@@ -10,6 +10,7 @@ import auth from "core/plugins/auth"
 import util from "core/plugins/util"
 import SplitPaneModePlugin from "core/plugins/split-pane-mode"
 import downloadUrlPlugin from "core/plugins/download-url"
+import configsPlugin from "plugins/configs"
 import deepLinkingPlugin from "core/plugins/deep-linking"
 
 import App from "core/components/app"
@@ -122,6 +123,7 @@ export default function() {
   }
 
   return [
+    configsPlugin,
     util,
     logs,
     view,
diff --git a/src/plugins/configs/actions.js b/src/plugins/configs/actions.js
new file mode 100644
index 00000000..70588372
--- /dev/null
+++ b/src/plugins/configs/actions.js
@@ -0,0 +1,20 @@
+export const UPDATE_CONFIGS = "configs_update"
+export const TOGGLE_CONFIGS = "configs_toggle"
+
+// Update the configs, with a merge ( not deep )
+export function update(configName, configValue) {
+  return {
+    type: UPDATE_CONFIGS,
+    payload: {
+      [configName]: configValue
+    },
+  }
+}
+
+// Toggle's the config, by name
+export function toggle(configName) {
+  return {
+    type: TOGGLE_CONFIGS,
+    payload: configName,
+  }
+}
diff --git a/src/plugins/configs/index.js b/src/plugins/configs/index.js
index 2269d873..58edbfa1 100644
--- a/src/plugins/configs/index.js
+++ b/src/plugins/configs/index.js
@@ -1,56 +1,66 @@
 import YAML from "js-yaml"
 import yamlConfig from "../../../swagger-config.yaml"
+import * as actions from "./actions"
+import * as selectors from "./selectors"
+import reducers from "./reducers"
 
 const parseYamlConfig = (yaml, system) => {
-    try {
-        return YAML.safeLoad(yaml)
-    } catch(e) {
-        if (system) {
-            system.errActions.newThrownErr( new Error(e) )
-        }
-        return {}
+  try {
+    return YAML.safeLoad(yaml)
+  } catch(e) {
+    if (system) {
+      system.errActions.newThrownErr( new Error(e) )
     }
+    return {}
+  }
 }
 
 
-export default function configPlugin (toolbox) {
-    let { fn } = toolbox
-
-    const actions = {
-        downloadConfig: (url) => () => {
-            let {fetch} = fn
-            return fetch(url)
-        },
-
-        getConfigByUrl: (configUrl, cb)=> ({ specActions }) => {
-            if (configUrl) {
-                return specActions.downloadConfig(configUrl).then(next, next)
-            }
-
-            function next(res) {
-                if (res instanceof Error || res.status >= 400) {
-                    specActions.updateLoadingStatus("failedConfig")
-                    specActions.updateLoadingStatus("failedConfig")
-                    specActions.updateUrl("")
-                    console.error(res.statusText + " " + configUrl)
-                    cb(null)
-                } else {
-                    cb(parseYamlConfig(res.text))
-                }
-            }
-        }
+const specActions = {
+  downloadConfig: (url) => ({fn}) => {
+    let {fetch} = fn
+    return fetch(url)
+  },
 
+  getConfigByUrl: (configUrl, cb)=> ({ specActions }) => {
+    if (configUrl) {
+      return specActions.downloadConfig(configUrl).then(next, next)
     }
 
-    const selectors = {
-        getLocalConfig: () => {
-            return parseYamlConfig(yamlConfig)
-        }
-    }
-
-    return {
-        statePlugins: {
-            spec: { actions, selectors }
-        }
+    function next(res) {
+      if (res instanceof Error || res.status >= 400) {
+        specActions.updateLoadingStatus("failedConfig")
+        specActions.updateLoadingStatus("failedConfig")
+        specActions.updateUrl("")
+        console.error(res.statusText + " " + configUrl)
+        cb(null)
+      } else {
+        cb(parseYamlConfig(res.text))
+      }
     }
+  }
+}
+
+const specSelectors = {
+  getLocalConfig: () => {
+    return parseYamlConfig(yamlConfig)
+  }
+}
+
+
+export default function configsPlugin() {
+
+  return {
+    statePlugins: {
+      spec: {
+        actions: specActions,
+        selectors: specSelectors,
+      },
+      configs: {
+        reducers,
+        actions,
+        selectors,
+      }
+    }
+  }
 }
diff --git a/src/plugins/configs/reducers.js b/src/plugins/configs/reducers.js
new file mode 100644
index 00000000..5b38931d
--- /dev/null
+++ b/src/plugins/configs/reducers.js
@@ -0,0 +1,20 @@
+import { fromJS } from "immutable"
+
+import {
+	UPDATE_CONFIGS,
+	TOGGLE_CONFIGS,
+} from "./actions"
+
+export default {
+
+  [UPDATE_CONFIGS]: (state, action) => {
+    return state.merge(fromJS(action.payload))
+  },
+
+  [TOGGLE_CONFIGS]: (state, action) => {
+    const configName = action.payload
+    const oriVal = state.get(configName)
+    return state.set(configName, !oriVal)
+  },
+
+}
diff --git a/src/plugins/configs/selectors.js b/src/plugins/configs/selectors.js
new file mode 100644
index 00000000..dcb6f670
--- /dev/null
+++ b/src/plugins/configs/selectors.js
@@ -0,0 +1,4 @@
+// Just get the config value ( it can possibly be an immutable object)
+export const get = (state, path) => {
+  return state.getIn(Array.isArray(path) ? path : [path])
+}