diff --git a/plantStructC4.adoc b/plantuml-c4-structurizr.adoc
similarity index 61%
rename from plantStructC4.adoc
rename to plantuml-c4-structurizr.adoc
index 040bb96..cca2394 100644
--- a/plantStructC4.adoc
+++ b/plantuml-c4-structurizr.adoc
@@ -1,8 +1,45 @@
-== plantStructC4.adoc
+== plantuml-c4-structurizr.adoc
 
 === Diagramming IAM with PlantUML, Structurizr, Dot, and C4 models
 
-==== Start simple
+=== Plantuml, Structurizr How-to on Mac
+
+*brew install structurizr-cli*
+
+```
+brew install structurizr-cli
+```
+
+*use structuralizr-cli to transform structurizr domain-specific language to PlantUML format*
+
+```
+./structurizr.sh export -workspace ~/opt/_adoc/non.adoc/workspace.dsl -format plantuml
+```
+
+output file is 'structurizr-SystemContext.puml'
+
+*install graphvis, plantuml from homebrew* +
+
+```
+brew install graphviz
+brew install plantuml
+```
+*render plantuml into graphic form*
+
+```
+plantuml structurizr-SystemContext.puml
+```
+*rendered graphic file is 'structurizr-SystemContext.png'*
+
+*quick view of the rendered png file*
+```
+qlmanage -p structurizr-SystemContext.png
+```
+ <= open png for preview on Mac +
+
+- - -
+
+==== Online, no installation required
 
 Open Online PlantUML Server: http://www.plantuml.com/plantuml/uml/SyfFKj2rKt3CoKnELR1Io4ZDoSa70000