If I create a surface using cogo points, I can add a breakline and it will act normally by swapping the triangles of the surface that it passes through.
If I create a surface by adding 3D faces as drawing objects and select the option for "maintain edges from objects", this creates 'invisible breaklines' and basically locks the surface and does not allow me to add additional breaklines. If I change the definition of the surface to "allow crossing breaklines", it still will not act as it is supposed to. Instead, it will create a new vertex at each intersection of the tin surface and breakline.
This suggestion is to add a feature that can remove "maintain edges from objects" after the surface is created.
