Copy-pasting of cells between notebooks

[Sejmou]

Hi everyone,

first of all: I love working with marimo, huge thank you to everyone that contributed to this awesome project so far <3

However, there's one thing that has been a huge painpoint for me while working on stuff with marimo: I can't copy-paste cells between notebooks (or, even within the same notebook afaik?).

I would like to be able to just select several cells (like in command mode), hit ctrl/cmd + c, navigate to the place where I want to insert the cells in another notebook, hit ctrl/cmd + v there and have all cells copied over. This would be much more convenient than my current approach (starting with a rough template and adding/removing the cells for stuff I would need for my specific project).

Additionally, moving cells by putting them to the clipboard temporarily (via ctrl/cmd + x and ctrl/cmd + v) would also be really helpful when reorganizing a chaotic notebook.

Are those features already on the roadmap, or maybe even available in some way that I am not aware of? I searched through the issues with different keywords, but couldn't really find anything (sorry if I missed something).

If not, what parts of the codebase should I look into if I want to look into contributing those features (in case you agree you want to have them in the project)?

Thanks in advance for your response.

Greetings,
Samo

[dmadisetti]

If you paste the underlying python definition in a notebook, it will auto make cells. Example, try pasting in this code block

@app.cell
def _():
    mo.md("Markdown cell")
    return
    
@app.cell
def _():
    a = 1
    b = 2
    a + b
    return

So the best implementation would have ctrl-c in command mode copy this raw code (which would also be good for sharing), and we'd get this feature of cross cell copy pasting for free.

[mscolnick]

@Sejmou @dmadisetti when you are in command mode (press Esc on a cell, and the cell will be selected), you can Shift+Up and Shift+Down to select multiple cells and copy with c and paste with v

Here are the docs: https://docs.marimo.io/guides/editor_features/overview/?h=copy#command-mode

[dmadisetti]

Got you- that works. Was trying cmd-c / ctrl-c. Multiple cells still copy the cells blocks concatenated though- which is fine

[mscolnick]

@dmadisetti that is only as a fallback. if the browser does not support custom copy/paste mime types. multi-cells work fine for me