Initially by default you cannot create a sound component or particle component.
This i feel should not be the case you should be able to use any pre set vfx or sound that epic have created.
You have to create a preset of the epic sound source which is crazy. Its should auto create this when you enable Scenegraph so you can create a sound_component without this extra step and add any sound. Unless you know or someone tells you this step is confusing and imo not even needed.
Currently only created/imported niagra vfx are usable in the sg system. Unless you import/create then you cannot create a component this again is crazy. Any pre set vfx that epic have created (See Image) should be able to be set as a basic functionality. I want to use the explosion vfx but i am unable to. I cannot create a copy of the vfx due to read only so again this is just another limitation that is stopping creativity as now i am forced to either create a explosion vfx or find/import again this is nuts
