change current domain to an Add-On domain
My main domain is "simplyservellc.com". I have, without knowing better, been setting up another domain name first, "dctax.us".
dctax is now the primary index under "public_html" and seems to be working fine. Now though, I want to set up simplyserve but when I try to install from softaculous it says there's already an installation at simplyservellc.com.
I believe I need to make one of them an "Add-On" domain. My problem is that dctax appears to be in the main domain's file, while simplyserve is designated as the main domain.
My concerns are, if I change the Main domain to "dctax" will it mess up any of the files already in place. If I make dctax an addon domain, will that mess up any files. It doesn't matter to me (unless it should for some reason) which is the main domain and which is the addon, but I'm nervous about guessing and messing everything up.
Thank you for any help, guidance, suggestions you can give me.