Please add an Article about extra charges for Writer Merges

Please add an Article about extra charges for Writer Merges

Hello Zoho.

I just passed by the terms 'credits' and 'merges' for Writer.
Looking up the KB gives much information on how I can pay for credits, but there is no explanation of what precisely a 'merge' is. I have never merged documents in my life... so, at first glance, I should be safe... but there must be a reason why I have to pay extra money to 'merge'...

BTW: even this Request form does not provide a 'Sub Category' on merges :-)

Please add some more information in the KB.

Thanks