Elevators?

How hard are Elevators to do in Hammer now? Is there a upto date Tutorial on here I can follow?

Basically, they're the same as in old Hammer. HL2 now uses models instead of pure brushwork, a prop_dynamic can be used for animated doors, for example. You can also attach any entity that has a "Parent" value by entering name of the entity it should move with. For example, you can have a trigger_multiple and attach it to move with an elevator platform!

One word of warning, though: Tick 100 servers can break anything that moves (like func_tracktrains) in multiplayer. Basically, the movement slows down and becomes jittery, in the worst case, stopping in the middle. I've only observed this in HL2DM, but you might want to check whether it was fixed in newer engine versions. For example, I would be surprised if TF2 still had it...