I am a new user of Org. I'm an experienced user of Emacs. My first use of Org was to create a table. I soon found myself wanting to insert a column. I looked at Info node "(org) Built-in table editor" [This manual is for Org version 8.2.9.] and it said:
‘M-S-<right> (org-table-insert-column)’
Insert a new column to the left of the cursor position.
I now know that this was somewhat mis-leading, since that key combination is bound to "org-shiftmetaright", but at the time I was rather confused (see topic "Org keymap question" in "news group" gnu.emacs.help). I'd recommend a revision to the Info manual, to describe more prominently command "org-shiftmetaright" and other "meta" commands like it (apologies in advance if there is a later version of the Info manual that addresses this).
Info node "(org) Conventions" does mention the use of the meta commands somewhat, but I certainly didn't see it right away.
I am using: