Props in Entities

Here is the thing, I created some brushes in order to look like a train, selected them all and made “func_tracktrain” then some “path_tracks” but, what if I wanna add some props, like chairs to the train and make them go with it in the track… because when map starts they get static in they’re spawn untill the train goes with me.

Anyone knows if I can make this work?
Thanks.

Parent prop_dynamics to the func_tracktrain.

nevermind, im stupid.