When you are handling pilot/PF/HP or whatever your company calls it, you may log the time under the P1 column with P1/S in the 'operating capacity' block.
As you already have an ATPL there is no requirement to have the entries countersigned; this is only a verification issue when the times comes to upgrade CPL --> ATPL.
Puzzled though.... how did you get to be an ATPL holder without knowing this?
