I see some people doing tests, but they assign a event to a tile.

How do i do that?

Since i dont want to paste events on all my tiles, because that takes hours.

They add a WARP event to some tile in the tileset and they add the tile to the level and it has the warp event.

Now how do you do that?

Place your mouse cursor on the tile you want to assign an event to and press "E".

After placing an event, hit 'b', select the tiles you want (in this case, the one[s] with the event), and then hit 'b' again. If you click somewhere after this, you'll place all the tiles you copied with 'b' in the same formation.

I don't think that is what he meant.

Perhaps not, yeah.

I believe he means on the side with the tileset assign it there so every time you place that tile it auto puts the event. right click on the picture in the tileset pallette and click overly --> events. then select it with your mouse and press "E". Now every time that specific tile is used it will automatically add that event