Also, the order of those opcodes on http://csounds.com/manual/html/index.html is:

syncgrain
tb
tab
tabrec
table
....

It is out of the alphabetical order and there is no other tab family opcodes (ie tab_i, tabw, tabw_i).

And either http://csounds.com/manual/html/SiggenTableacc.html, http://csounds.com/manual/html/TableReadwrit.html do not mension
them.

Excuse me for my persistence but I suggest that each opcode page is not under huge un-categorized

IV. Reference
-Orchestra Opcodes and Operators

but eg

III. Overview
-Signal Generators
--Table Access

to find alternative opcodes easily and to use "Up" link so.

All the best

Kanata Motohashi
http://www3.to/sar/