Just discovered this!

[Rik]

Rik,

Better use ALT button for this;
If you make a habbit of this,you'll find that if you use the shapebuilder tool will also draw straight lines(alt not ctrl)
If you use the ctrl+alt,it draws straight lines at your angle constraints
and if using ctrl+alt+shift it is an eraser with straight lines in angles
This also applies for the eraser tool

Hans

If I've understood what you say, Hans. Pressing the ALT key whilst dragging an object, doesn't do what the CTRL key does?

[Michael]

Rik,

Better use ALT button for this;
If you make a habbit of this,you'll find that if you use the shapebuilder tool will also draw straight lines(alt not ctrl)
If you use the ctrl+alt,it draws straight lines at your angle constraints
and if using ctrl+alt+shift it is an eraser with straight lines in angles
This also applies for the eraser tool

Hans

but there's a snag with that one which IMHO is a bug: when using a brush as a line, the ALT trick doesn't work anymore. bummer.

[restless]

I think the Xperts probably already know but, I just came across this.
Does it in XDP7 and XDPX. I'm not sure about other versions, but these two I have and I can check.

If you click to select an object, and you press the CTRL key, and then drag the object around the screen, you can move it in straight lines.
Left, right, up, down, in straight lines.
And at 45 degree angles as well.

You get a star shape that appears and guides you, to ensure that you are dragging the object on the line you want.

Try it!

Thanks for posting... I didn't know that.