In previous years, I have used Turbolister to store my seasonal listings until I need to upload them for the next year.  However, my understanding is that eBay will not be continuing support for TL so I am reluctant to trust these listings to it this year.  If I save the listings to inventory and change the quantities to 0 or deactivate them, will they stay in inventory indefinitely so that I only need to add quantities and reactivate them later in the year?