So I have a problem with Martins video. Looking for some help.

I must be misinterpreting a click or a drag.

I make the line and 2 circles. Then offset the line the distance of circles.

Start the tangent circle command and select on first circle.

Second click on line ends command for me. It seems Martins video gets a second point click there, then third pick on second circle is a diameter pick for the tan snap...

What have I missed?