Hmmm.. not really sure what you are after... but I sense you arent either.
Your table has an index on the ID field anyway... you could put one on the text field, but not sure it is going to help that much really.
If you wanna put one on it... when in design view, just go >View >Indexes and add it in, if it isnt already, which it probably will be, knowing Access!
You've posted this in the
VB section, so you might imagine this would be done in
VB, it can be.. just not sure why you'd want to?
But like I say, I doubt this is actually what you asking...