auto aim invulnerable targets

hey is there an option for crazy client to still autoaim targets even when they are invulnerable? for dungeons like encore and lost halls where the boss has short vulnerable phases, id rather be just shooting at the boss

You can add and remove an exception with /aex <id> , /rex <id> , and also something with default reset. I bet you can find all the commands pressing the additional upwards arrow button on minimap.