Scheduled Slides let's you set a date range for individual Soliloquy slides so they don't appear before or after.
Not happy with this plugin. Worked fine for a couple of weeks then wouldn't allow me to add nes slides or edit existing ones. Found out the it is in chrome that it doesn't work. Works fine in IE and firefox. The author is non responsive. Went to plugin website for resulotion but in order to ask a question you must open a ticket. But to start a ticket you must pay $9.00. I already paid for the plugin.