1 - Go to Advanced feature and turn on Zepo Mobile site option.

Please find the whole process for Big-Rock/MITSU/DOMAINS N MORE below:

Select My account

1.Go to Manage orders> list/search order

2. Select DNS Management> Manage DNS

This m site would be mobile responsive and would be based on Layout 5 Foppish theme.

Once domain is active and if anybody opens up the store on mobile as your-custom-domain.com, then it would redirect to m.your-custom-domain.com automatically.