If you have 1 gadget in your 1 card hand and you go trap stun chain ultimate offering can you pay for it multiple times (say 4 times) even tho the other gadgets aren't in hand. I think you can but not sure? I think that was what was talked sbout in the video.
If the offering was flipped during the chain you can only pay once, if it was already face up you can chain it to itself as many times as you wish. In either case the gadget would miss timing due to being optional and summoned as cl2 or higher