Images within a Folder and Sub-Folder + Developer API

1. Say I have a parent FolderA within which I have sub-folder FolderB. I have 2 images in FolderA and 3 images in FolderB. When I click on FolderA, does this plugin provide an option to display all 5 images in the WP backend? I basically need the parent folders (within any level of the folder hierarchy) to display all images from all their sub-folders.

2. Is it possible to bulk update all images from within a folder to say - bulk update their alt text or caption, etc. thereby making all alt texts and captions the exact same across all images within that folder (including sub-folders)?

3. Do you provide API access (like Firebird apparently does)?

4. Does this plugin play well with ACF?