Multiple signups for one task

That’s a feature request, and not a support issue. There is a feature request section on my site (as already stated here on the description, and on the FAQ page). This forum is for support issues.

If you’re are simply asking if the plugin can do that right now, then the answer is no. But, there is nothing stopping you from setting a really high number for the # of people needed for each task, which would essentially make it unlimited. Or, set it at a reasonably high #, and if you start getting close to that and need more slots, just edit the task and increase the # of slots.

Or, you can use something like a custom form plugin, like Gravity Forms or Contact Form 7, and just have any one who is interested submit that form, and keep track of things that way if you don’t need a set limit or other specific features of this plugin.