diff --git a/Docs/README.commands b/Docs/README.commands
index e9ed009f0..0583ddd78 100644
--- a/Docs/README.commands
+++ b/Docs/README.commands
@@ -77,6 +77,16 @@ save - save properties to an XML file
file: the name of the file to save, relative to the current
directory (defaults to "fgfs.sav").
+loadxml - load XML file into property tree
+ filename: the path & filename of the file to load
+ targetnode: the target node within the property tree where to store the XML
+ file's structure
+
+savexml - save property tree node to XML file
+ filename: the path & filename for the file to be saved
+ sourcenode: the source node within the property tree where the XML file's
+ structure is assembled from.
+
panel-load - (re)load the 2D instrument panel
path: the path of the XML panel file, relative to $FG_ROOT (defaults
to the value of /sim/panel/path if specified, or
diff --git a/Docs/README.gui b/Docs/README.gui
index 4b7691728..dd26f4865 100644
--- a/Docs/README.gui
+++ b/Docs/README.gui
@@ -358,5 +358,26 @@ Example:
360
+textbox
+-------
+
+The text will be retrieved/buffered from/within a specified
+property tree, like:
+
+
+
+ 100
+ 100
+
+
+ 200
+ 400
+
+ /gui/path-to-text-node/contents
+
+ 15
+
+ true
+
__end__