Why not just snack on something for those 20 seconds? I get the point, but I don't think that's something that is ever going to get added to Onslaught. How would skipping the timer even work? I guess you could interact with the ADU and that runs a script to force the timer to conclude if everyone interacts with it, but besides bounties, most objective functionality is linear and rushing it or forcing it to skip things could also likely break things or perhaps even cause softlocks if no one is careful. Could be something that, depending on how they have the mode set up, could potentially require a large overhaul to the objective system, which I don't think is worth the effort for this if that's the case. I'm just being a negative nancy based on past situations with the game.