Trivial Option with ActiveIfs (2 checkboxes 'true' simultaneously) still is not visible independently on checkbox values.
@Option
private boolean checkbox1;
@Option
private boolean checkbox2;
@Option
@Proposable("dynamicValues")
@ActiveIfs({@ActiveIf(target="checkbox1", value="true"), @ActiveIf(target="checkbox2", value="true")})
private String value;