Yes create a custom ffmpeg based profile (refer to documentation) and add -map 0:a -map 0:v to the ffmpeg-video parameter (it will copy all audio and video tracks - assuming the source has multiple audio tracks). You can use the MKV profile as an example which support multiple audio tracks from profiles.conf.
Note some containers like AVI do not natively support multiple audio tracks and you may have playback issues with non supported players (like WMP) and these containers. TS, WTV, MP4, M4V and MKV are the known containers which support multiple audio tracks.
If the source does NOT have multiple audio tracks then you can create a custom profile using handbrake or ffmpeg to convert a single audio track into multiple audio tracks (refer to ffmpeg and handbrake documentation)
Note some containers like AVI do not natively support multiple audio tracks and you may have playback issues with non supported players (like WMP) and these containers. TS, WTV, MP4, M4V and MKV are the known containers which support multiple audio tracks.
If the source does NOT have multiple audio tracks then you can create a custom profile using handbrake or ffmpeg to convert a single audio track into multiple audio tracks (refer to ffmpeg and handbrake documentation)