Not yet but I will be working on it soon for an upcoming release update. Right now I'm working on making saving / loading with instanced scenes easier but removing and moving objects comes right after that. I will have 4.0 out soon for that and several other features and then 4.1 should be moving / removing after that. I'd like to put in the ability to recover resources spent to build in demolition as well.
Watch for updates @ https://chris-tutorials.itch.io/grid-building-godot/devlog. Should be posting soon.