Re-introduce "Ready Check-crystal" in arenas

Hey!

Now when Icecrown/Lordaeron/Blackrock all share 2v2 arenas I'm wondering if it's possible to add the "Ready Check-Crystal"s back to arenas where if all participating players clicked it the game would start within 15 seconds. Blackrock used to have that feature and I found it very handy for long arena sessions. Making it all more enjoyable.

I think there are a bunch of people that would appreciate it being brought back, if technically possible ofc.

My best regards,

Marmot

Is this not possible?