Eh. A real VT100 should understand tabs, you can set them with 'Esc H' oddly the DEC manuals don't say what the effect of resetting tabs would be (I'd guess it defaults to multiples of 8 characters).
Not \x08 tabs, but tabs like recent firefox and chrome use (as if you had several terminal windows with separate ptys and screen contents, but all in one window-manager window).