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Save edited Dash data table in Tabs

Hi,
I have a problem. I create app with tabs. It looks like: In the first tab user can upload csv file and on the second tab user must select specific column names form uploaded csv file and assign them to the required columns name. The problem is in situation when I change tabs, move to tab1, return to tab2 and everything is gone, the user have to repeate everything in tab2.
Do you have any idea how to save any change in the table so that when you return to tab2 you have seen your last edition ?
Here’s an example:

Hey mery!

I also have the same problem… did you already solved that problem? If yes can I ask how? :slight_smile:

Best