On Etext template, is it possible to create LOV for reference within the template?

Hello,

We have a requirement to create a payment file format on Etext template. We have a field that needs to display a 3 character string that will serve as a code equivalent of a specific field.

For example:

Code Name

001 Sample1

002 Sample2

003 Sample3

So it will function like:

Select Code

from tableLOV

where Name = NameField (field from outbound payment)

I'm using sql syntax to illustrate how we want it to work, and I hope it was clear enough.

Is there a function for etext template that we can use to achieve this?