Unassociative line feature between two points

I need to draw a line between two points, hoping that it's a FEATURE and INDEPENDANT from the two points. But it seems not to be as easy as it looks like.

● In drawing a line between two ponts, if we check "Associative", a line feature results. When the two points are deleted, the line would also be lost.

● If we uncheck "Associative", a line non-timestamp geometry results. When the two points are deleted, the line would not be affected. But the line is not an editable feature.

Is it possible to draw line feature between point 1 and point 2 and make it unassociative to the two points?

Thanks!