when running flow it asks you to select a base curve, you can select a surface edge using sub object key modifiers, but for target curve you can select an edge without the sub object pick key modifier.
just for consistency it would be cool if base curve worked like target curve.
Hello - as far as I can see that is not the case here - maybe there is a combo that does not work but so far I can pick edges directly for both inputs.
hmm, i just tried it again a few times and i always have to use the modifier to pick a base curve. strange. i tried in v7 and v6. wish i could screen cap it.