Select the right three columns.
Ctrl-E. Should center three columns worth of text. Centers TWO columns text, but leaves the rightmost selected column unaffected.
If I select two columns, only the leftmost one is centered.
If I try Ctrl-R, everything works fine.
If I use Ctrl-L, everything works fine.
Ctrl-E, though, does not, UNLESS I have the entire table selected.
However, once I’ve selected the entire table and centered it, Ctrl-E seems to center the columns no matter how many are selected.
But until I’ve done that, Ctrl-E’s “Centering” ability is a bit less than expected.