By Sticky Query keyword=value that sets Theme for Visitor until Override Query keyword=value is found in URL.
None of Themes in WordPress Theme Directory alter the appearance of WordPress Admin panels.
Use with Paid Themes On-going full scale testing of Themes by this plugin's author is possible if Theme is found in WordPress Theme Directory.
As described in FAQ, WordPress Network is alternative to this plugin, as way to create web site with more than one Theme..
Use with Plugins that Cache You may find that you have to flush the Cache whenever you change Settings in the Multiple Themes plugin.
Changing Theme Options.
After installing and activating the plugin, see Settings page and click on Theme Options for information on changing Options for Themes other than the Active Theme..
How it Works The plugin does not change the Active Theme defined to WordPress in the Appearances- Themes Admin panel.
Which means that simply deactivating this plugin will restore the way that Themes were displayed prior to installing this plugin.
However, in some situations, it's possible to inadvertently Theme Options for the Active Theme when using either of Methods described on the plugin's Setting page Theme Options tab..
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