It’s called Reserve

If the listing is active..when you open it there are two links under the title..Reserve and Edit

Reserve hides the item from your booth
Also

Update Items as a Group (batch edit)
Under item Basics
Select items to be put on reserve
Click on Set Status
drop down menu
Select Reserve

To find your reserve items later
Use the Add New filter feature
Select Status [URL removed]
And choose Reserve from the drop down menu and this will bring up the reserved items for your to re-activate, edit, delete…ect

I wouldn’t hide any of them. People buy items off season and you could be missing sales. I just sold some Christmas items.

You can also edit your item, and enter a zero quantity. This way all you have to do to reactivate your items is add the quantity back in when your ready.

Another way to do it is to edit your listing, then just take out the price or the title. and save it. It will still be there and visible to you when you edit, but it wont be visible in your booth since it cannot be listed without a price. I find this a bit easier than the reserve.