We’ve had a few discussions on this forum in the past year about horizontal scrolling. The collapsible LHS menu was one idea, and we have that now and it helps but does not totally get of scrolling, particularly on the Sales Invoice entry form. Adjustable or suppressible columns was another idea, which came up related to the Customer ledger table, which has some columns like Email address that can sometimes be wide enough to push more-important columns off the right side of the screen.
Another possibility is relative column width on the Sales Invoice instead of absolute width. The problem with this is depending on the overall width of the screen, a column that is, say, 5% width might become too narrow to see what it contains.
Robert, you might try zooming out a bit and see if that makes it any better for you. That’s what I do for the Sales Invoice screen, and now in combination with collapsing the LHS menu, the size I need to avoid scrolling is actually quite reasonable.