Online Bidding Groups allow you to easily manage groups of items with different opening and closing dates and times.
You can create as many online bidding groups with unique opening/closing times as you need.
If you need to make a change to an entire group, editing the online bidding group in Site Settings will update all of the assigned items automatically.
Individual items can be reassigned to a different group via either individual or bulk edits on the Catalog page.
If you want all of your online/mobile items to open and close at the same time, simply edit the default Online Bidding Group to your desired date/times, and all items will automatically be assigned to open and close at the same time.
To Create a New Online Bidding Group:
Go to: Admin > Site Settings > Online Auction / Mobile Bidding > Bidding Settings > Add new Online Bidding Group:
Deleting a Bidding Group requires you to re-assign any items to another group:
To Re-assign Individual Item(s) to Different Bidding Groups:
Go to: Catalog > Edit Item > Specify New Bidding Group > Save.