I've been at this for a while and I know it's doable but I can't seem to get it to work....
I can save my Graphs to a journal but can't append a small data table (summary table) to the journal..... --- any hints?
Highlight the cells you want in the table, or select everything, then hit Crtl-J or Edit--> Journal. The selected cells should show up in the Journal with column headers.
dt = Open( "$ENGLISH_SAMPLE_DATA/Big Class.jmp" ) << Summary( Group( :Age ), Mean( :Height ) );
dt << journal;
Works in JMP 9 & 10, possibly also in older versions.