I want to move a client over to X-Theme, but they are currently using another WordPress theme (yuck).
How can I help them move their website off the old theme onto x-theme without affecting current website before our work is done? Essentially, we want to minimize website down-time and make the switch seamless.
Please setup a staging site and install X there. When you’re done editing your site with X you can move it to main domain.
Please check this link : community.theme.co/kb/cornerstone-migration