Scheduler

This feature was introduced in version 1.94 and need at least PHP 5.3 on your server

You could execute your Workflows with recurring intervals, for example every day at 6 and 16 o'clock.
To create such configuration, please click on the button “configure module” in your Workflow List.

There you see “Workflow planer”!

The Button “add new” will create a new configuration,
which allows you to select the Workflow and the detailed configuration like the crontab feature in linux.
You found an explanation here: http://en.wikipedia.org/wiki/Cron.

Also you could deactivate a configuration if you don't need this every time, but don't want to delete.