1- Yes, but the crosswind limitation is lower than for a manual landing- usually something like 15 Kts crosswind component as opposed to anything up to 30-40 kts manually.
2- Fairly difficult. There are 2 techniques- holding into wind wing down and rudder on to counteract so you don't need to crab, and wings level drift. I never liked the first. If you do the second, it's more comfortable and less fatiguing for the aeroplane to 'kick off' drift. In fact it's 'push off drift'- you don't kick anything. Has to be timed right, and you have to be ready to counter the strong yaw induced roll so you touch down before you start drifting downwind over the runway edge. On the VC10, I've seen half aileron on to avoid a wing scrape.
The Galaxy apparently used to have drift preset into the main landing gear so you needn't do any niceties and just land it with drift on. Very complex and expensive and unreliable. If the wind changed, you were landing an aeroplane with a scew wiff undercarriage. It didn't catch on.