To edit, you can double-click on the card or hover over the drop-down list and click edit. (Except for using the video element).
To move the cards, hold the card with the mouse and move it between the columns or to another column.
Saving occurs automatically, the loader notifies you about it from the bottom, it occurs automatically after moving or editing the text after a few seconds. You can also make a forced save in the settings, the settings are located in the lower right part of the application.
If you want to use save, you will need to run the application locally on your computer, this is done to save space on the server. (For more information, see step 2)
To edit the graph, you must open the edit window, supported by the JSON editing format.