How can we fixed delimited a multibyte string

Hi ,

I know that for a variable of type string we can set value as below to be able to generate a flat file with a fix delimited length of 10 for below example

STRING name(10) FIXED
name = "andrew" | the string now contains the value "andrew ", not "andrew"

I want to do same for multibyte string that contains Russian characters , but I cannot fix the length. Each character can take 1, 2, 3 or 4 bytes.

Any idea how to solve

Thanks
Gaetan