Choose Format - Align - Left (LibreOfficeDev Writer, LibreOfficeDev Calc).
Choose Shape - Align - Left (selected objects) (LibreOfficeDev Draw).
Open context menu - choose Align - Left (objects selected) (LibreOfficeDev Impress, LibreOfficeDev Draw).
On Align bar (LibreOfficeDev Impress, LibreOfficeDev Draw), click