Attn: Brian

"A very short leader arrow can be added to one end of a circular arc, to simulate an arc leader. Do not know if this is OK or not"

The one I did below used two "arrow leaders" and no text on them.
1 with open arrow one with dot.
'Cut dir' is "ABC text" (really easy to place precise)
To get the curve I trimmed the slot shape/copied that.
Then stretched it manually to create an inset.
This is a workaround and fairly fast or "good practise"
as the arrow tools cannot currently be curved.







> Those with a sharp eye might notice the curve object is slightly thicker than the leader lines...
Michael's workaround is only for those into 'ini' editing:
re: line width – the dimension lines use a rendering style that has a thinner amount of anti-aliasing than regular curve geometry.
Currently there isn’t a way to turn that off for the dim lines, but you can turn it on for regular geometry in moi.ini :
[View]
<….>
UseThinAntiAliasing=y
--------------------------------------

Another specific way to show 'cut direction' direct on path is here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=9781.5