Clean up, add comments

src/app/components/PageLayout/Header.tsx

@@ -18,7 +18,7 @@ const needsScopeSelector = (): boolean => {
     case 'network':
       return RouteUtils.getEnabledNetworksForLayer(getFixedLayer()!).length > 1
     case 'layer':
-      return RouteUtils.getEnabledLayersForNetwork(getFixedNetwork()!).length > 1
+      return RouteUtils.getVisibleLayersForNetwork(getFixedNetwork()!).length > 1
     case 'both':
       return RouteUtils.getEnabledScopes().length > 1
     case 'none':

src/app/utils/route-utils.ts

@@ -7,6 +7,7 @@ import { Network } from '../../types/network'
 import { SearchScope } from '../../types/searchScope'
 import { isStableDeploy } from '../../config'
 import { getSearchTermFromRequest } from '../components/Search/search-utils'
+import { isLayerNotHidden } from '../../types/layers'
 
 export const isTesting = () => process.env.NODE_ENV === 'test'
 
@@ -154,6 +155,10 @@ export abstract class RouteUtils {
     return Object.values(Layer).filter(layer => RouteUtils.ENABLED_LAYERS_FOR_NETWORK[network][layer])
   }
 
+  static getVisibleLayersForNetwork(network: Network): Layer[] {
+    return this.getEnabledLayersForNetwork(network).filter(isLayerNotHidden)
+  }
+
   static getProposalsRoute = (network: Network) => {
     return `${getNetworkPath(network)}/consensus/proposal`
   }

src/types/layers.ts

@@ -33,5 +33,6 @@ export const doesAnyOfTheseLayersSupportEncryptedTransactions = (layers: Layer[]
   uniq(layers).some(doesLayerSupportEncryptedTransactions)
 
 export const isLayerHidden = (layer: Layer): boolean => hiddenLayers.includes(layer)
+export const isLayerNotHidden = (layer: Layer): boolean => !hiddenLayers.includes(layer)
 
 export const isNotOnHiddenLayer = (item: HasLayer) => !isLayerHidden(item.layer)