Dj do u know how to make this part work ?

Arrow slots:

Arrow slots are defined for towers. Each arrow slot should have an 'arrow_horizontal_x' and 'arrow_vertical_x' geometry.
Where the x is a single digit to specify which slot number. The two geometries should be simple isoceles triangles with
a shared point to specify the weapons position (just inside the slot), and the angle of both geometries at that point
describing a field of view for the weapon.

I mean I made new towers but didn't edit anything about arrow slots , are they firing in automatic per a text file to be edited or is something to be done on the model?