Zoho appears to be worthless for documents

I tried creating documents in the Docs application. I was able to complete two long documents, but the third document failed to save even though I had either pressed ctrl+s or the save button many times. So half the third document was lost.

Then I tried writing documents as emails then saving them as drafts for transfer later to document format. I found that you cannot copy a section from a draft email then paste it into another document or text file. Then I found I accidentally pressed the wrong key and the entire email was erased. But there was no undo function. So the entire email which was going to be a document, was lost.

I was using the email-draft function because the Doc application is pretty much useless. It does not look like there is any way to make a document using Zoho.

Have I missed something?