Will Visio 2013 draw a line tangent between two curves

[Quarencia]

I can't get Visio 2013 to create a line tangent between two curves.  I know I've been able to do this in past versions, but I don't know how many versions back that was or how long ago it was.

I have read everything that comes up in google searches and watched the VisGuy video from 2009, but it doesn't seem to apply to new versions of Visio.

I can get the tangent line started from one curve (it turns blue now, not red like it did a decade ago).  When I bring the tangent line close to the second curve, it snaps to geometry and turns yellow.  It will never snap to a point defined as tangent to the second curve.

I have tried with circles, ellipses & freeform curves in all combinations and starting from both curves.  I can't get it to work.

I have Snap set to Shape Extensions & Shape Geometry only.  Drawing Aids is enabled.  I have Curve Interior Tangent enabled in Advanced tab.

Any help would be appreciated.  Thanks,

[Paul Herber]

Have a look at the shapes here:
http://www.microsoft.com/download/en/details.aspx?DisplayLang=en&id=2497
Might be something useful ...

[wapperdude]

Except for some coloring changes, this functionality should be the same.  See Visio Guys treatment of the topic:  http://www.visguy.com/2009/07/02/draw-tangent-lines-in-visio/