Administration > Environment Variables > APTOPENINSTYLER — Opening a Document in Arbortext Styler
  
APTOPENINSTYLER — Opening a Document in Arbortext Styler
Specifies that Arbortext Styler will be launched when selecting the Open in Arbortext Editor option for a document in a Windchill repository.
If APTOPENINSTYLER is set to Yes, and Arbortext Styler is installed, the document will be opened in Arbortext Styler instead of Arbortext Editor.
Expected values are Yes and No.