Angular dynamic components. How to add projectable nodes with parent component injector?

Question

I create dynamic component:

const comp = createComponent(componentType,
            {
                environmentInjector: this.appRef.injector,
                elementInjector: parentComponentInjector,
            }
        );

I can add projectableNodes like this:

const comp = createComponent(componentType,
                {
                    environmentInjector: this.appRef.injector,
                    projectableNodes: [...childCompnents]
                }
            );

That way I can add projectableNodes but the problem is that I need to create childComponents before I parentComponent. Therefore I cannot inject them with parentComponentInjector and I cannot take adventage of chierachical DI Angular has, beacuse to get the parentInjector I need to create parentComponent before childComponents. Is there a way I can use both projectableNode and Angular DI?