Replicating BFME Portal Trigger

[Silverfish423]

Hello everyone! So, if you have played BFME, you would know that Minas Tirith has this interesting portal to go thru a hall. Units approach one end of the hall and then appear on the other end (no clicking a building or nothin, just by the mere fact that the unit walked there), which allows for pathing above it to be made.
How would I replicate this? Thanks!

 

[Maker]

Use regions and unit enters a region event. Then unit - move unit instantly action.

 

[Silverfish423]

Great, I will test it out. Thanks!