Hello David,
Thank you for your question about Bid Groups. By definition, any items you place in a Bid Group will be turned off as soon as you win an item in that group. You can tell them apart: The "win in group" icon is slightly different than the "win" icon. (The smiley face is winking.)
Here is our help page on that subject:
https://bidslammer.com/help/bid_groups
Please let us know if you have any other questions. We welcome any other questions that you may have.
bidslammer