Nope, the document template dynamic label doesn't allow you to do such.
What my approach is for many document templates is that I create a Non persistent entity, with attributes which captures all values I need for the doc template. In the microflow before generating the document, I create an object and fill all attributes with the required data. The document template contains a data view with non persistent entity as data source.
In you case you could add a string attribute, where you concat static and dynamic values and use that as dynamic label value.
Hello, Community!
Besides Rene's approach (thank you, Rene!) do we have another approach to combine dynamic and static text directly on Document Template widgets?
Thanks