Just update the "views" post meta of that post to 0.

Just update the "views" post meta of that post to 0.

How is this done in the WordPress admin panel? Apologies if I am missing something.

https://designmodo.com/wordpress-post-meta/

When you have access to the underlying database (e.g. by installing theAdminer plugin), you can execute the following query to reset:

start transaction;
deletefromwp_postmetawheremeta_key='views';

This will start a transaction to delete all the view data. It isn't gone yet, so if you change your mind, you can just executerollback;.If you are sure you want to delete the data, executecommit;.

Btw: If you want to get a table containing the view data for each post, page and file, you can use:

selectp.ID,p.post_title,cast(m.meta_valueassignedinteger)
asview_cnt,p.guidasurl,p.post_type
fromwp_postmeta m, wp_posts p
wherem.meta_key='views'
andm.post_id=p.ID
order byview_cntdesc;