Show all documents for one customer when used "sales invoice" POS operation

When customer uses the POS operation "Sales Invoice" by design the API getinvoice only show the first 250 oldest document, Invoice or credit memo, if customer create a new document this can´t be shows until an old document is posted or deleted. The idea consists in that customer have a date filter option to show all filtered documents for one customer when "Sales invoice" is used in POS.