Defaulting preferences that appear whilst signing up for volunteering as an employee

Summary:

Defaulting preferences that appear whilst signing up for volunteering as an employee

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Hello,

Is there anyway that preferences can be defaulted when the employee signs up for volunteering activities? As in, we do not want any employee to go through this process. Instead, it should be defaulted to all causes for all employees. Our organization P&C partner has commented that it is not possible that employees would take the time out to sign up for volunteering activities. I understand that this is a one time only activity but they want a way wherein employee doesnt have to go through this process.