Curve Bridge

You can bridge two neighbour curves using Bridge Curve.

To bridge two curves:

To bridge two curves naturally, select two curves and define the module length of the tangent directions properly. If two selected edges lay on the same surface, you can check "Same Surface" to constrain the new bridge curve on the surface. If you want the bridge curve's tangent module length is the same as the selected curve, check "Native Tan Module".

You can also create a bridge curve by selecting four points. .