Merge command: [stratt-boxsubtitleh4 ]
Merge variable/item: strAttBoxSubTitleH4

Comments:
This wraps [stratt-boxsubtitle ] in an h4. If [stratt-boxsubtitle ] is empty no h4 is generated !

Formula:
@If(@Trim(strAttBoxSubTitle)="";"";"< h4 >"+strAttBoxSubTitle+"< /h4 >");