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Say your site was about gardening. You start off publishing 6 articles on 'caring for your garden in winter'. You want those articles to run from November 01 to January 01.
On January 01 you want 6 new articles on 'planting seeds' to replace them.
It's feasible to prepare the articles in advance. So if the 'winter' articles were given a group classification of 'A' and the 'seed' articles group 'B', you could set a cross-over date for them in the module. E.g.
Group..........Show..........Hide
A................Nov 01........Jan 01
B................Jan 01........Apr 01
Apologies to any gardeners if my notion about planting seeds in January is ludicrous, it's a subject about which I know nothing!