Calc- hide option

Hello!
I am trying to hide some columns form the table I made in calc.
On the right mouse click, there is no hide option.
What should I do?
many thanks!

Hi altair,

if first you left-click on the column header, with right-click you will find hide option.

And if you need to hide / show column(s) repeatedly better use Menu/Data/Group & Outline/Group, marking the option Menu/Tools/LibreOffice calc/View - Window - Outline symbols, and with only a click in “-” / “+” over columns header hide/show the column(s).

Thank you. I think that the outline symbols should be activated by default.