We are working on a feature that will allow you to accept PayPal payments in your signups to collect dues or other fees for your organization.
How We Envision Payments Will Work
Collecting payments will be as easy as creating an additional prompt - a payment prompt. The prompt can be configured to a specific amount, let the volunteer select an amount or allow them to enter an amount. Upon clicking the volunteer button the volunteer can make their payment via PayPal. The volunteer will not be confirmed for the slot until payment has been made.
The ability to collect payments will be an add-on service for an additional fee TBD. We expect to have this feature available by the end of 2014.