Expenses/other expenses

A method that would allow to add document for other expenses. And when you add other expenses document to open cash drawer if payment chosen for expenses is cash and for that to show up on z report as cash out (other expenses) with amount and maybe reference number. As a workaround I created a separate product called other expenses, add document add value as per expense then I have to go to main sales screen do a cash out with explanation for other expenses and reference for easier tracking. Surely there must be a way to simplify that?