Describe your issue or idea
This is a follow-up to https://github.com/backdrop/backdrop-issues/issues/2796 where @olafgrabienski suggested
I'd suggest to integrate file editing to the node form, adding an Edit button, and opening the respective file edit form in a modal.

GitHub Issue #:
2810
Recent comments
Hey there! That error message is definitely a head-scratcher. Even though you uninstalled Views, it sounds like something is still referencing a Views-related constant. Maybe a custom module or...
VIEWS_STORAGE_OVERRIDE
Thanks Alejandro. That was the clues I needed.
Ubercart - Programmatically add product to cart and straight to Checkout
Have you tried uc_cart_add_item()? You need to provide the nid of the product. Then you can use backdrop_goto('cart/checkout'); to send the user to the checkout screen. uc_cart_add_item...
Ubercart - Programmatically add product to cart and straight to Checkout