Cleaning Holes: Ignore holes in the mesh.
Adding/Removing Constraints (Modifications): Add or remove two types of constraints: constraints applied to vertices ; constraints applied to curves.
Imposing Nodes (Modifications): Distribute nodes on edges.
Domain Edition
Re-meshing a Domain: Re-mesh a domain using new parameters.
Removing the Mesh by Domain: Remove the mesh you generated on a domain of the geometry.
Locking a Domain: Lock a domain by selecting it.
Modify Mesh
Mesh Editing: Edit a mesh to provide higher quality.
Splitting Quadrangles: Split quadrangle elements in order to improve the mesh quality.