Arc has Start On End

Circle Start On End or Start End On
Seems stricly the same?

Maybe something useful will be the possibility to move "one" of the 3 points before close the function Circle (or Arc)?
Because when you select "Show Points" you have many points of the "curve circle" (or Arc) !
And move a point of "Show point" of a circle is not the same than move one of the 3 points construction :)