Mix to mono

I would like the option to export the entire mix to mono. I know the option of exporting stems, but this is not sufficient, I need to combine several mono tracks to one single mono file for export. My studio does a lot of voiceover work and each session can contain several voices on individual tracks that i need to combine.

Today I have to convert the exported stereo mix to a mono file, which is unwanted extra work. I therefore request the possibility to choose stereo or mono export, just like in Logic Pro, Reaper, etc.