Add labels as new rows in the footer, where all columns are merged.
This is a sugar function to be used when you need to add labels in the footer, a footnote for example.
add_footer_lines(x, values = character(0), top = FALSE)a flextable object
a character vector or a call to as_paragraph()
to get formated content, each element will
be added as a new row.
should the row be inserted at the top or the bottom. Default to TRUE.
Other functions for row and column operations in a flextable:
add_body(),
add_body_row(),
add_footer(),
add_footer_row(),
add_header(),
add_header_row(),
delete_columns(),
delete_part(),
delete_rows(),
separate_header(),
set_header_footer_df,
set_header_labels()