Character equivalence

[imnasnainaec]

Requested by Hasso:

Special case: Aruamu has a barred i (ɨ) that is not always keyboardable, so Marsha sometimes has her language helpers type a + so she can replace-all to fix it later. Fortunately, we did not have to do this for this workshop. I see that the Character Inventory in The Combine allows find & replace for characters (good). Marking the characters as equivalent would also have been helpful for the typeahead search had we needed to resort to typing +.