hey george

you could use the SelectClosedCurves for a tinytiny workflow-enhancement

http://kyticka.webzdarma.cz/3d/moi/#SelectClosedCurves

it selects all closed curves, so it doesn't bother with points and lines..

your work flow would be something like this

1. draw circle 1 -> radius
2. draw circle 2 -> radius
3. pick point -> intersection 1 or 2
4. SelectClosedCurves -> delete


cheers,
marco