I find the chart on the box darn near impossible to decipher. I'm attaching pictures if someone can help. The circuit breakers in my panel currently are Siemens type QP. The panel itself is a Siemens 125 amp. There are 4 different part numbers listed for the actual box so I'm not sure which box I have. I'd like to replace one of the 15 amp breakers with AFCI/GFCI breaker. Would the Siemens Q115DF bolt-on work or can I use the Q115DFP plug on neutral? Aside from removing an existing breaker to check, how would I know if I can use a plug-on neutral?