R devtools: package documentation on first page of the manual

Question

How do I make devtools::build_manual put package documentation on the first page of the manual?

#' flowNet: Mapping the Topology of Single Cell Data
#'
#' Some text...
#'
#' @section Some more text...
#'
#' @docType package
#' @name flowNet
NULL
#> NULL

.datatable.aware <- TRUE

Output:

Answer 1

I do not think you can, and you have your tools crossed. devtools does not influence how base R collates all Rd entries into a pdf.

But I just took one guess at an older package (xts) by a friend and indeed, it has a first entry ending in "-package":

So just add an entry flowNew-package (via roxygen2) and you should be good.

Here is another example from a package of mine: