Place any object and go into it through this line (click on it and the ellipsis).
In that window, select the effect line and click on "new." A small window will open; enter any name for the effect in it.
Then, in this line, create a new object, just like the effect, but with a different name.
There, you need to insert a model and adjust its location (to make it easier, I immediately enter x -300 y -300).