Sales and purchase documents have a lot going on. Focus mode gives the lines the whole screen.
On any document (sales order, purchase invoice, journal, a transfer order), press Ctrl+Shift+F12 or click the focus icon on the lines FastTab. The header and FactBoxes collapse out of the way, the lines fill the screen, and you can see twenty-five lines instead of eight. Press it again to go back.
Use it for long orders, for checking a purchase invoice against the delivery, and for anyone keying journals from paper. Combine with Alt+F2 to hide the FactBoxes on a card and you get the same effect for master data.
