Table options, merge cells

A Jenkins

So I just started work on a new project, as I basically leapt out of bed with a mostly complete plot in my head for a story.
Problem is, as the story progresses I will have stat, quest, and other tabled information for my readers to be able to look at, both as a source of foreshadowing, and as a means of character skill/ability progression. Think the character menu in a game, but I can't seem to edit tables as freely here as I can on word. For example I can't merge cells, something I wanted to do as a means of cleaning it up for my readers so as to get rid of unnecessary cells, without deleting a column, or something whilst still keeping the information.