Insert a column before the column where the cursor is currently placed. The number of columns inserted corresponds to the number of columns selected. If no column is selected, one column is inserted. The existing columns are moved to the right
このコマンドの見つけ方
「メニューバー」から
Choose Table - Insert - Columns Before.
「メニューバー」から
Choose Sheet - Insert Columns - Columns Before.
Choose Sheet - Insert Cells - Entire column.
「コンテキストメニュー」から
Choose Insert - Columns Before.
Select one or more columns, choose Insert Columns Before.
Select one or more cells, choose Insert - Entire column.