Grid and Help Lines
Toggle the visibility of grid points and guide lines to help object moving and precise position in the current sheet.
Displays or hides grid lines that you can use to align objects such as graphics on a page.
Grid to Front
Displays the grid lines in front of the objects on the slide or page.
Helplines While Moving
Specifies whether to display guides when moving an object.
LibreOffice creates dotted guides that extend beyond the box containing the selected object and which cover the entire work area, helping you position the object.