You can add health to the objects so that they can be destroyed when hit. It is very easy to set; Go to Object Menu -> Interactions -> Abilities -> Health
Object Menu -> Interactions -> Abilities -> Health
From the Health menu you can enter a value to set the HP for the object.
Health menu
If you click on Advanced you can set the where the HP bar stands on the object by dragging or clicking on the HP bar vertical offset slider.
Setting the HP bar vertical offset
By combining different abilities and options like Damage, Health and Pathsyou can create enemies in your world.
To learn more about health and damage abilities, check out the video tutorial below!