I bet that is in either Report Manager – headers and footers – OR may be in Parameters – a more general setting – what application are you working in and what part of Design 2020 v11 are you working in?
Apparently there is a program which allows you to do so. I contacted the residential support team of 2020 and they sent me a link to that program and it was quite easy. I am working on kitchen designs and the version I use V11 5.1.4