diff --git a/scripts/core_scripts.lua b/scripts/core_scripts.lua
index f05c4d9ec5..b284028f6c 100644
--- a/scripts/core_scripts.lua
+++ b/scripts/core_scripts.lua
@@ -1,20 +1,20 @@
 openspace.documentation = {
     {
         Name = "markInterestingNodes",
-        Arguments = { sceneGraphNode = "[ String ]" },
+        Arguments = { sceneGraphNodes = "String[]" },
         Documentation = "This function marks the scene graph nodes identified by name " ..
-        "as interesting, which will provide shortcut access to focus buttons and " .. 
+        "as interesting, which will provide shortcut access to focus buttons and " ..
         "featured properties"
     },
     {
         Name = "markInterestingTimes",
-        Arguments = { times = "[ Table ]" },
+        Arguments = { times = "Table[]" },
         Documentation = "This function marks interesting times for the current scene, " ..
         "which will create shortcuts for a quick access"
     },
     {
         Name = "removeInterestingNodes",
-        Arguments = { sceneGraphNode = "[ String ]" },
+        Arguments = { sceneGraphNodes = "String[]" },
         Documentation = "This function removes unmarks the scene graph nodes " ..
         "identified by name as interesting, thus removing the shortcuts from the " ..
         "features properties list"
@@ -39,6 +39,26 @@ openspace.documentation = {
         Arguments = { oldKey = "String", newKey = "String" },
         Documentation = "Rebinds all scripts from the old key (first argument) to the " ..
         "new key (second argument)"
+    },
+    {
+        Name = "appendToListProperty",
+        Arguments = { identifier = "String", value = "any" },
+        Documentation = "Add a value to the list property with the given identifier. " ..
+        "The value can be any type, as long as it is the correct type for the given " ..
+        "property. Note that a number will be converted to a string automatically."
+    },
+    {
+        Name = "addToPropertyValue",
+        Arguments = { identifier = "String", value = "String | Number" },
+        Documentation = "Add a value to the property with the given identifier. " ..
+        "Works on both numerical and string properties, where adding to a string " ..
+        "property means appending the given string value to the existing string value."
+    },
+    {
+        Name = "invertBooleanProperty",
+        Arguments = { identifier = "String" },
+        Documentation = "Inverts the value of a boolean property with the given "..
+        "identifier"
     }
 }
 
@@ -82,3 +102,38 @@ openspace.rebindKey = function(oldKey, newKey)
         openspace.bindKey(newKey, v)
     end
 end
+
+openspace.appendToListProperty = function(propertyIdentifier, newItem)
+    local list = openspace.getPropertyValue(propertyIdentifier)
+    if type(list) ~= 'table' then
+        openspace.printError(
+            "Error when calling script 'openspace.appendToListProperty': " ..
+            "Could not append to non-list property '" .. propertyIdentifier .. "'"
+        )
+        return;
+    end
+    table.insert(list, newItem)
+    openspace.setPropertyValueSingle(propertyIdentifier, list)
+end
+
+openspace.addToPropertyValue = function(propertyIdentifier, valueToAdd)
+    local value = openspace.getPropertyValue(propertyIdentifier)
+    if type(value) == 'string' then
+        value = value .. valueToAdd;
+    else
+        value = value + valueToAdd;
+    end
+    openspace.setPropertyValueSingle(propertyIdentifier, value)
+end
+
+openspace.invertBooleanProperty = function(propertyIdentifier)
+    local value = openspace.getPropertyValue(propertyIdentifier)
+    if type(value) ~= 'boolean' then
+        openspace.printError(
+            "Error when calling script 'openspace.invertBooleanProperty': " ..
+            "Could not invert non-boolean property '" .. propertyIdentifier .. "'"
+        )
+        return;
+    end
+    openspace.setPropertyValueSingle(propertyIdentifier, not value)
+end