Multiple codepages in the same file

## Background [Optional]
Hi,

in our case one file contains several codepages. Different lines are encoded with different code pages. There is a column that acts like a country_code, and it is based on the country code that we know which codepage to use. A file is usually coded with 4-5 codepages. Currently, we would have to read the file for each codepage separately by reading only the appropriate lines (based on the country_code column) with the appropriate codepage.

This is quite slow.
## Question
Do you see any possibility to use multiple codepages in the driver at the same time with one readout?

Thanks!