yes, in column manage, only can remove the visibility of it, but can't delete it.
in stype manage, can't see non project stype, like project, task... only can see asset, shot project stypes. so can't manage it in there.
but in project "tactic" stype manage page, can see all stype, but delete the column, only affects the tactic project, not in the project that I create the column , it's still there.
Ok， finally i find it , it's in the view/ edit current view, there's a trash icon can delete it.
in stype manage, can't see non project stype, like project, task... only can see asset, shot project stypes. so can't manage it in there.
but in project "tactic" stype manage page, can see all stype, but delete the column, only affects the tactic project, not in the project that I create the column , it's still there.
Ok， finally i find it , it's in the view/ edit current view, there's a trash icon can delete it.