shortcut for working with multi-language audio and channel configuration

When working with WAV to AC3 encoder, we can drag and drop files into the window instead of clicking on the MUX Wizard button and choosing the respective channels. WAV to AC3 encoder needs 48 k 16 bit mono wav files in the default configuration, and the file order is
L
R
C
SL
SR

This is also the order in which the MUX files are saved from within the MUX Wizard.

Our channel configuration order is

FL - speakers
FR - Hindi

C - Telugu
SL - English

SR - Malayalam / Tamil
SW - Not used / Kannada