Hello,
Ok so you mean to don't display in the guest checkout form, I think that you can use some css command with display: none; in the guest checkout.
Something like this :
.guest_class_form .custom_field_class {
display: none;
}
See
this tutorial
to see how to proceed to add custom css
Now, if your custom field are
required that will leads to something more advance like an
override view to prevent this field to "really" don't displayed in the view, as Nicolas told in his previous message.
See
this tutorial
to learn more about
HikaShop override view.
The last solution if the custom is too advance for you, you can
contact one of our partner
.
Hope that you will achieved what you need.
Regards