To change the menu bar of the mobile footer, please follow the below steps:
Step 1: Install and active onemall_child-theme package on your site.
Step 2: Access into your code folder by FTP or Cpanel
Step 3: Go to the wp-content/themes/onemall_child-theme => then create mlayouts folder on it.
Step 4: Go to the wp-content/themes/onemall/mlayouts => copy footer-mstylex.php file which you are using ( http://prntscr.com/ms3lwa)
Step 5: Paste footer-mstylex.php into the wp-content/themes/onemall_child-theme/mlayouts
Step 6: Open the footer-mstylex.php in the wp-content/themes/onemall_child-theme/mlayouts => then you can edit the mobile footer menu bar which you want again.
This tutorial requires you to know a little bit about code and CSS. You can also apply this to our other WordPress themes with Mobile Layout ready.