Create a pooled capacity and assignment in SAP.

Create a capacity or pooled capacity with same tc:CR11


For a pooled capacity ,just ticked "pooled capacity"


then click the "intervals and shifts" to plan the detail capacity .



After you create the pooled capacity ,you can assign it to a work center. tc:CR02



Once you done here, you can't directly adjust the capacity of the work center .you have to adjust pooled capacity by tc CR12.