Extending this:
Table:
kt2[kt.k] === kt2.index(kt.k, product=False)
kt2[:] === kt2.index_globals()
Matrix:
m2[:, :] === m2.index_globals()
m2[m2.v, :] === m2.index_rows(m.v, product=False)
m2[:, m.s] === m2.index_cols(m.s, product=False)
m2[m.v, m.s] === m2.index_entries(m.v, m.s, product=False)
I kinda like this, actually. We can clearly document it as a shorthand, and full documentation can go on the index things.