Merge command: [strcalendar-boxtitleh1 ]
Merge variable/item: strcalendarLinkBoxTitleH1

Comments:
This wraps [strcalendar-boxtitle ] in an h1. If [strcalendar-boxtitle ] is empty no h1 is generated !

Formula:
@If(strcalendarLinkBoxTitle="";"";"< h1 >"+strcalendarLinkBoxTitle+"< /h1 >");