How to delete tree

Hi I am only about 30 mins with the engine so please be patient with me:) I placed some trees in the model, I could easily get rid of the first two. I do not know which method I used to place the remaining tree, but when I click on it, it appears to be “connected” to the skp model I imported. When I select it and delete it deletes the whole model so I assume that i put it on the same layer. I can go into brush history and turn it off but I am unable to delete it in the brush history. Any suggestions to get rid of this tree?

Hi mate, you need to use the brush eraser function to delete it or right-click and delete it in the menu.