Can the bundle slots show free gifts too?

Yes — on the designs with a slots panel (Primary, Editorial, and Boutique), switch on “Show gifts in the slots” on the Bundle slots block in your theme editor. Free gifts then get boxes of their own, ahead of the numbered ones, so the slots picture the whole bundle — gifts included.

• The gift boxes are there from the start — as many as your most generous discount step offers — labeled “Free gift” (the wording is a setting) until the gift is earned.
• The numbered boxes still count only the products the customer picks, so the savings markers stay on the exact slots that earn them — a gift never takes a numbered spot.
• Customers can remove a gift straight from its box, unless the discount step locks the gift selection.

Newly added pages start with it on; pages added before this feature keep it off until you switch it on.