If a switch is set to -yes, then convected unknowns (like temperature) will not be stabilized for numerical oscillations. If a switch is set to -no, then spatial stabilization is used. The switch switch_0 is for the first primary unknown, etc.. A switch should be specified for each primary unknown. Default the switches are -no.
A special format control_skip_spatial_stabilization index -all sets each switch to -yes.