Is Template Preview In Designer Free to Try

I see the option when looking at templates to Preview in Designer? Can I play with the templates in designer before I buy one? This would allow me to show a client a few different ideas before buying the template correct? Can I use staging before buying the template or just use in the designer?

At what point am I prompted to buy it if it is a paid template?

You can play around with the template as a preview link but there’s no way to save that to your account or use staging for this.

You can use a register for a free account and test the tool but there’s no way to “test” a template other than the preview link as I mentioned.

If I decide to buy the template that I’m playing around in preview mode, will what I was building in the preview carry over to the “real” template after purchase?