Predefine and prepopulate fields within blocks and layouts


I’m using layouts and blocks to create a very custom type of page builder. Now, I have a couple of page designs that can be achieved by combining certain layouts + blocks with their own settings (nested fields). So, my question is; is there a way to predefine layouts (with settings/fields prepopulated) and blocks within those layouts? Also to prepopulate multiple layouts in succession?

I am able to do that with blocks but just blocks like this:

But I’m not sure if I can leave multiple layouts predefined, kinda like this:

And with their settings prepopulated, this is an example of default layout without predefinition: