Can the EDITOR PAGE layout be edited?
Would it be possible to use the FormGenerator plugin to create a bootstrap styled addForm for that section. Then edit the layout of that form to be how you want it to display and save it to the server. Then, include this form in the admin by using a text-link menu item, so users will use that form in the CMSB view.
Should work for new records, but will be a bit harder to use for editing those records.
Your options would be to create a custom form, which you could have look like whatever you want but would require custom programming.
Or, you could experiment with using the CMSB Field Editor and setting Field Prefix and/or Field Addon (Before). For Field Prefix you can use to add spaces.
If you put whitespace padding before the fields and field labels and descriptions after the fields you might be able to create a pretty good looking workable field layout pretty quickly.
Hope that helps!