c where c is any key (case sensitive) ^c where c is one of A thru Z or one of the following quoted set '?[]\^@' (^? == delete key) METAn-c where n is 1, 2, 3 ... 8 and c is the same as the first form above METAn-^c where n is 1, 2, 3 ... 8 and c is the same as the second form above mc where m has been previously bound to META1_CHARACTER, META2_CHARACTER, META3_CHARACTER, ... META8_CHARACTER and c is the same as the first form above. m may be either of the first two forms above (m or ^m). m^c where m has been previously bound to META1_CHARACTER META2_CHARACTER, META3_CHARACTER, ... META8_CHARACTER and c is the same as the second form above. m may be either of the first two forms above (m or ^m).