I would like to have the possibility to define a data line which forces a page break while designing a LLStaticTable
May I ask what exactly your layout would look like? My first intention would be to add two static tables and set the “page wrap before” property of the second to “true”. That should yield exactly the required result.
Another idea might be to use a specially formatted RTF content, see https://www.combit.net/en/enterprise-reporting/service/report-server-knowledgebase/kb/general-information/trigger-page-wraps-in-rtf-text/.
Does that help already?
Defining two LLStaticTables is a reasonable solution.