Hi Don, oops one other thing - you were describing deleting the image and then inserting a new one. You don't actually need to insert a new one because you can snap an existing image on to a line that you have already created separately.

When you go into the Image command, existing images are editable by clicking and dragging on them inside the viewport, and if you start your drag near a corner point (grab somewhat towards the inside of the image so that you don't get the scaling grip), that will snap on to the image corner and allow you to place the corner point exactly.

So you can do that to move the corner of an image on the endpoint of a horizontal line (which you have created in a previous step at the desired size), and then grab the scaling grip on the opposite corner of the image and drag it to the end of the line where it will snap. The trick is that you've got to grab the upper-right scaling grip of the image because you want the lower-right corner to be the fixed point of the scale, and then you drag down and release it over the endpoint of the horizontal line.

There are a couple of previous posts that have some animations showing this, I'll dig those out.

- Michael