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[Yurcee]

I’m sorry but I can only link a related case where we move panels:

How to move panels?

you are better off moving the icons from the right sidebar (long press on icon of backlinks, outlinks, tags and outline) and drag them individually – carefully – over to the spaces between icons on the left sidebar and then when all done, close right sidebar you’ll need to extend the left sidebar in the process by hovering the cursor over the right edge of the left sidebar and drag it right to have space to accommodate the transferred icons before you do all this, you can use the core workspac…

Also, if you think you have made an error, in the .obsidian folder, the workspace.json contains your vault workspace arrangement. Renaming that file to workspace.json.bak or anything else with Obsidian off and re-starting Obsidian again will have you back on the original plain stock/default settings.