You can resize the width of table cells and columns, as well as change the height of table rows.
You can also distribute rows and columns evenly using the icons on thetoolbar on the Bar.
Do one of the following:
Rest the mouse pointer over the column dividing line until the pointer becomes a separator icon, and then drag the line to a new location.
Rest the mouse pointer over the column dividing line on the ruler until the pointer becomes a separator icon, and then drag the line to a new location.
Hold down Command Ctrl and drag an object to create a copy of the object.
Place the cursor in a cell in the column, hold down the Option Alt key, and then press the left or the right arrow key.
To increase the distance from the left edge of the page to the edge of the table, hold down Option Alt+Shift, and then press the right arrow key.
You can specify the behavior for the arrow keys by choosing LibreOffice - PreferencesTools - Options - LibreOffice Writer - Table, and selecting the options that you want in the Keyboard handling area.
Hold down Option Alt+Ctrl, and then press the left or the right arrow key
To change the height of a row, place the cursor in a cell in the row, hold down the Option Alt key, and then press the up or the down arrow key.
To change the width and height of a table, do one of the following:
Click inside the table. In the rulers, drag the border between the white and the gray area to resize the table.
Click inside the table. Chooseto open a dialog and set the properties to the numbers.
To delete the contents of a table, click in the table, press Command Ctrl+A until all cells are selected, and then press Delete or Backspace.
Tables within HTML pages do not offer the full range of properties and commands as tables in OpenDocument format.