I will have rather many attribute-sets combinations since I work with a parsed JSON data, with flat hierarchical structure (where I need to build up the attributes content in XSL). Since I have the XSL modularized with the file principal.xsl as primary XSL it would be benificial to gather all varations of attribute-set in one file and call that file from principal.xsl. I have understood that when performing an include one actual inserts the templates into principal.xsl. but the attribute-set is not inside a template.
How can I load attribute-sets from another XSL file into principal.xsl?