Imagine you want to contribute to the Bengali Wiktionary by editing a page. Without making any changes, identify the primary text editing area on the 'সাহায্য' (help) page and explain the purpose of the 'Save changes', 'Show preview', and 'Show changes' buttons in the editing interface.
Navigate to the Bengali Wiktionary page for 'সাহায্য' (help) at bn.wiktionary.org/wiki/সাহায্য. Click the 'এই পাতাটি সম্পাদনা করুন' (Edit this page) link. Click the 'সম্পাদনা শুরু করুন' (Start editing) link to access the full wikitext editing interface. Identify the main text editing area. Identify and describe the function of the 'পরিবর্তন সংরক্ষণ করুন' (Save changes) button. Identify and describe the function of the 'প্রাকদর্শন দেখুন' (Show preview) button. Identify and describe the function of the 'পরিবর্তন দেখুন' (Show changes) button.
Successfully navigate to the 'সাহায্য' (help) page and access its full wikitext editing interface. Identify the primary text editing area (wpTextbox1). Accurately state that the 'পরিবর্তন সংরক্ষণ করুন' (Save changes) button is used to save edits to the page. Accurately state that the 'প্রাকদর্শন দেখুন' (Show preview) button is used to view changes before saving. Accurately state that the 'পরিবর্তন দেখুন' (Show changes) button is used to compare current edits with the existing page content. Do not make or save any changes to the page.