Contains some of the basic entities needed to ensure smooth transitions between levels. Also contains the instances transition_entry.vmf and transition_exit.vmf, whose relevant content will be listed here as well. It is typically found in:
C:\Program Files\Steam\steamapps\common\portal 2\sdk_content\maps\instances\
These entities are handled by the "sp_transition_list.nut" VScript triggered in transition_entry.vmf.
For more information on transitions, see Level Transition (Portal 2).
||Script Think Function