Completable projects

I would greatly appreciate if projects could be completable. This means that when I finish all action steps in a given project and need to close it, I should have the option to either complete it or at least archive it. Currently, I have to delete it from Akiflow if I don't want a pile of projects sitting in my system.

Why is this important compared to deleting the project?

When I delete a project and later need to look back at the actions I performed for some reason, I still have them in the done todo items, but no longer with the project context, which I think is wrong.