How can I log a new enquiry for an existing Account

How can I log a new enquiry for an existing Account

I am looking at introducing the Zoho CRM system to our company and am trialling the Enterprise version. I like the way you can progress from a Lead to an Account. However, in our business its typical that an existing account will enquire about an additional service or product we offer and it is not considered a DEAL yet (ie enquiry about information not price). I'd like to log such enquiry in the CRM system under the ACCOUNT and on a regular basis run some analytics on the type of enquiries by date. Such as: in Q1 2017 how many enquires about PRODUCT 'X'. Is this possible at all? Cant seem to find an easy way to do it whilst the rest of the program seems very intuitive.