Re: please make that dragndrop disable option
@Guest: Are you looking for Options > Toolbars > Lock Toolbars?
https://winscp.net/eng/docs/ui_toolbars#customizing
https://winscp.net/eng/docs/ui_toolbars#customizing
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I drag the buttons above the left (local) pane, and put all of the buttons on one row. However, when I quit WinSCP, and then re-start it, the buttons are again on two rows.