Arrows don't snap vertical or horizontal

[FRB]

I often need to extend vertical or horizontal arrows in a chart. Unlike Excel
2003, in 2007 dragging one end of the arrow causes it to snap to any
direction EXCEPT vertical or horizontal???

 

[Bernard Liengme]

Click chart
Use Ribbon command: Insert | Shapes and click the arrow line
Hold down the SHIFT key and drag mouse to make line
best wishes

 

[FRB]

Yes, But now try to e.g. lengthen the line by dragging one end - it becomes
unaligned, whatever you do. I can't replace all the arrows every time I
update a chart.

 

[Jon Peltier]

What do you need the arrows for? In 2007 you can apply arrowheads to all
kinds of lines in a chart, including axes (yes!), error bars, and lines
connecting points. Probably trendlines too.

I would scrap the manually drawn arrows and use actual chart elements.

- Jon