Exporting split stereo in a 5.1-Session

When exporting audio I often use the “export L/R-channels” feature to bounce pre-mixes for visual departments etc. They would prefer getting a splitted stereo audio (because avid), and I´m asking why I cannot click “LR-Export” PLUS “Split Channels”?

Indeed not a big time-killer, but a small feature request anyhow!