Customisation sales quote

Frappe Framework Customization
2

I would look at following resources for customization

  1. Print Format Builder - this will allow you to add comments below description.
  2. Print format - this will help you adjusting column of print report. This will however entail changing HTML/CSS {if it cannot be adjusted from Print format builder}

I would also look at related discussion: Customize Table in Print Format

Hope this helps