EEVEE - EXTERNAL Indirect Light Bake Cache + Shaders refresh

Could be an option to give ability to store whole cache data of backed indirect lighting in external file - not blend with the models ? The user should choose to have it inside blend or not. Because in many cases cache data can have over 2GB for a single room ! And saving that size of file takes time even if I did only changes in meshes or materials.

So give Blender that option please with the input to set the name and path for that file. PLEASE.

I am testing eevee very hard right now and going to get results near that I have in UE4 at the moment. ( my reference material for eevee that I rendered in UE4: artstation.com/tomaszmuszynski ) So probably I will have many ideas of updating Blender for archviz. Sorry ;)

EDIT: Eevee needs a all shaders rebuild/refresh function. I have issues that my textures disappear and have to reconnect the every main shader node in materials with missed textures OR GO TO OBJECT EDIT MODE AND BACK (TAB) to see them back !!! (some kind of manual refresh I do this way)