It's not possible to merge one account with any number of other accounts.
This is not currently a planned feature at the time this article was written.
You can however head over to www.crescat.io for our contact info and request this feature. If we get enough feature requests, we will start looking into adding account merging.
Please don't feel like it's a drop in the ocean. We take all inquiries seriously, we just need to see that there is a demand.
We graciously ask for your patience and understanding as we work towards a better Crescat for everyone.