How do hide and unhide columns please

I used to right click in excel to do this but I don’t see the command on my calc sheet, using 6.3.5.2
thanks

Please try right click on the header of colum (letter row)

HideShow

Or choose Format - Columns - Hide

Also you can add hotkeys for this operations - choose Tools - Customize - Keyboard tab

Or you can create your own buttons on toolbar

thank you very much, so easy to just right click.