Removing Attributes from particleShape

[codaxe]

As I was working I've added a couple of attributes that I no longer need and would like to clean up a little the attribute editor(per particle (array) attributes.
Is it possible to remove atributes there?
I've made alot of tweaks to this and really don't feel like starting again

Thanks

[joojaa]

rightclick on the atributes connection field and choose delete atribute!

But why would you need to sytart again even if you would have tweaked the lot? I mean expressions and force can be copied. The only provblem is the initial start locations wich too can quite easily be copied.