what is real-time add offer by a panel
I am not sure what you are asking?
Where did you see this? It makes no sense. It’s gibberish.
Maybe it’s the “Create an Offer” button in the message system? Or the “Send Offer” button in the buyer requests section (though I’m guessing maybe the message system). Or maybe the “Fiverr anywhere customer offer”?
If it’s the “Create an Offer” button, it’s just to send a custom offer for something that the normal gig/packages and their prices may not really cover. It allows a seller to give a custom price and no. of days delivery etc. for the specific task the buyer wants.
Here’s the help for sending a custom offer (in the message system/buyer requests) in case that’s what is being asked about: