Generally only B&M lift hills, and possibly some modern GCI woodies. You can see it on SWARM on a good day. The train will depart the station, slow down around half way up until the train on circuit enters the station. It can stop the train on the lift hill too if needed.
I'm not aware of any RMCs that have this feature, their 'block' is from the exit of the station to the first MCBR. I'm hoping with the reduced capacity of this ride type they have managed it, it can increase the throughput by quite a bit! I'll have a look at the offride videos, see when they can dispatch the train.