I've read elsewhere in a forum that there can be a quicker way to get through transit security in terminal 3 by taking the elevator to the next floor after arrival where the security checkpoint is far quicker.

My flight from the Uk arrives at 00.30 when it's quite busy with international arrivals and I would rather use my time better than waiting to get through security again.

Does anyone know how to do this?

Also does anyone know if there are smoking rooms in T3 or a bar where I can smoke. There used to be, but I couldn't find it so was forced to go to Terminal 1 or the Irish bar.

All help appreciated.