You are speaking to members like yourself, not to your seller or your courier.
Your seller will not be able to arrange this for you.
Couriers I have used, send me tracking and if I'm not going to be at home, they ask if they can leave in a safe place, or neighbour. This will be the nearest I think, you'll get , to leaving any instruction for any courier.
Handing items over personally , is not always possible, as the couriers work on a strict and tight schedule of work, so they will usually leave items in a safe place , or take the item back to their depot, if recipient is not home.
@susiepoos070562-1