You can follow the below steps to Freeze a Memership for with the Freezing Fee.
1. On the Client Summary Page, Select "Freeze"
2. Select the Membership that you want to Freeze.
3. Select the Freeze Dates.
4. Take a Payment for the Freeze Charges.
You would then see the all the Frozen Memberships, You can either Change the Freeze Dates, Stop the Freeze or Cancel it.