diff --git a/doc/symbology/README.md b/doc/symbology/README.md
index 5175056..9f00169 100644
--- a/doc/symbology/README.md
+++ b/doc/symbology/README.md
@@ -11,3 +11,6 @@ The symbols are:
   - added with an anchor or two (a small magenta dot) for the placement along the track(s)
 
 Run the script "generate_symbols.sh" to generate the PDF, PNG, and SVG version from the files in the "symbols_tikz" folder.
+
+
+The Visio symbols are provided as a stencil. Copy the stencil to the folder named "Documents/My Shapes" which should be present on your computer. Master-shapes in this stencil are smart; just drop a master on a drawing page and right-click.
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diff --git a/doc/symbology/symbols_visio/tikz-symbology.vssx b/doc/symbology/symbols_visio/tikz-symbology.vssx
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