Delete selected
This modifier deletes all currently selected data elements (particles, bonds), i.e., those
data elements whose Selection property is non-zero.
The modifier displays a list of object classes it can operate on. Classes currently not present in the modifier’s input are grayed out. If there are multiple objects of a class present in the modifier’s input, you can optionally restrict the modifier to a particular one of them. Otherwise, the modifier will process all objects of the selected class and delete their currently selected data elements.
See also
ovito.modifiers.DeleteSelectedModifier (Python API)