diff --git a/src/blackcore/application/applicationsettings.h b/src/blackcore/application/applicationsettings.h
index 1ee96d114..31015d511 100644
--- a/src/blackcore/application/applicationsettings.h
+++ b/src/blackcore/application/applicationsettings.h
@@ -54,6 +54,19 @@ namespace BlackCore
                 static const QStringList enabledSimulators(BlackMisc::Simulation::CSimulatorPluginInfo::guessDefaultPlugins());
                 return enabledSimulators;
             }
+
+            //! Simulator plugin identifiers valid?
+            static bool isValid(const QStringList &pluginIdentifiers)
+            {
+                for (const QString &pluginIdentifier : pluginIdentifiers)
+                {
+                    if (!BlackMisc::Simulation::CSimulatorPluginInfo::allIdentifiers().contains(pluginIdentifier))
+                    {
+                        return false;
+                    }
+                }
+                return true;
+            }
         };
 
         //! Uploading of crash dumps is enabled or disabled
diff --git a/src/blackmisc/simulation/simulatorplugininfo.cpp b/src/blackmisc/simulation/simulatorplugininfo.cpp
index 0c4e6c313..0b9e4188c 100644
--- a/src/blackmisc/simulation/simulatorplugininfo.cpp
+++ b/src/blackmisc/simulation/simulatorplugininfo.cpp
@@ -74,6 +74,18 @@ namespace BlackMisc
             return s;
         }
 
+        const QStringList &CSimulatorPluginInfo::allIdentifiers()
+        {
+            static const QStringList identifiers(
+            {
+                fsxPluginIndentifier(),
+                p3dPluginIndentifier(),
+                xplanePluginIndentifier(),
+                fs9PluginIndentifier()
+            });
+            return identifiers;
+        }
+
         QStringList CSimulatorPluginInfo::guessDefaultPlugins()
         {
             if (BlackConfig::CBuildConfig::isRunningOnUnixPlatform())
diff --git a/src/blackmisc/simulation/simulatorplugininfo.h b/src/blackmisc/simulation/simulatorplugininfo.h
index 0f0397657..16683d12e 100644
--- a/src/blackmisc/simulation/simulatorplugininfo.h
+++ b/src/blackmisc/simulation/simulatorplugininfo.h
@@ -76,6 +76,9 @@ namespace BlackMisc
             //! Plugin identifier (XPlane)
             static const QString &xplanePluginIndentifier();
 
+            //! All valid identifiers
+            static const QStringList &allIdentifiers();
+
             //! Guess default plugins
             static QStringList guessDefaultPlugins();