Here is one more option to move row(s), column(s), or cell(s) with simple drag & drop. Using LibreOffice Calc 5.x.:
1. Select the entire row(s)
To select the entire row(s) click on the Calc numbered columns located on the far left of any sheet.
Note: That column has darker background colors and is filled with automated row numbers.
2. Press and hold ALT key
Note: Cells are moved and shift the cells in the target area to the right or to the bottom. Source cells are emptied, except if you move within the same rows on the same sheet.
If you move within the same rows on the same sheet, the cells in the target area shift to the right, and then the whole row shifts to fill the source area.
3. Left click and hold any cell within that section
4. Using the mouse drag and drop the source row(s) to its destination
Note: Notice the dragged selection has a thick black border only on one side. A thick border on the left indicates vertical insertion mode, and a thick border on the left indicates horizontal insertion mode.
5. Release the mouse button
Done you have successfully moved row(s). To move column(s) redo the same steps as above but with column(s).
Source and more options to move columns, or rows, or cell with simple drag & drop at Moving Cells by Drag-and-Drop - LibreOffice Help