testing themes – an easier way?

i have just moved from b2evolution to wordpress as of last night, and i was going to edit the theme, but i don’t like doing that while the site is live..

i looked around on here, and found that the only ways around this are the obvious ones. i don’t really want to get too much into installing and testing on a separate installation, so i had an idea..

in b2evolution, you can specify a them to use in he url like:

https://www.village-buzz.com?theme=testing

or something like that..

i tried this in WP, but no luck.. i suppose i could look over the code for something like this..

but i thought i would ask you guys first..

is there a way to specify the theme through the url?

this would sure take the edge off..

thanks!