We assume that you have claimed and verified your Google Business Listing and that you are now editing/adding information to your listing.
For those who have had a verified Google Business Profile (GBP) for a few years you likely have noticed substantial changes in how you interact with GBP. The biggest is arguably moving from editing your information in the Dashboard and now doing it in the Search Results page – that interface is now called New Merchant Experience (NMX).
I could create original training content but I’ve found a couple of sites that have already done it, and the bonus being that they likely will keep up with any Google updates. please visit these sites if you wish to optimize your GBP or are curious as to the features of those other sections :
The Ultimate Guide for Taking Full Control of Your Google Business Profile and NMX
and
How to manage and edit your Google Business Profile from Google search