How does warcraft 3 Map Editor set the tree to regenerate after 5 seconds of death? More details

The starting point of the last unit panel construction in the book is a circle selected on the map. The starting point is that the round house can't be used, which may be because the terrain is uneven, decorated or far away from me.

The monster stands too close to the circle. According to the level of the monster, for example, the map shows that strangely, the bigger point is about 5.

Ordinary campaign maps are not refreshed, and goose bumps need to be placed directly on the map. Won't change, die once and leave.