Ability to override Default Asset Location in the Field Layout Editor

[nitech]

Description

My team is adding a lot of products to our Craft Commerce site. Because I am re-using the productImages-field accross all product types, my editors have to click their way through the asset hierarchy every time they add a new product.

I would like the ability to specify a Default Asset Location per implementation of the asset field (Field Layout Editor), in the same way as you can override the Label and Instructions.

[brandonkelly]

Not currently possible to override certain field type-specific settings in the layout designer, but that has been requested (#4321), and once it is, the default asset location could be a candidate.

[nitech]

It would allow for a smoother content authoring experience.