Frankly I don’t think there is an option to add FX to your mics on the P2 (like there is on the P4). That said, even on the P4 it’s relatively limited in that you have only the standard reverb/echo with few options for tweaking it. It’s fine if the best man wants to sing a song for the bride and groom and you want to save him from sounding too bad, but it’s no substitute - imho - for a serious FX option.
So, if you really need one or two mics with more options, you might consider adding a small mixer (you can have a look a the document I added to this post: PRIME 4 TO Streamlabs OBS) to your setup.
I guess it’s a “what do I really need” vs “what am I willing to do to achieve it” situation where you hold the only right answer.
There are of course several dedicated fx units that you could add between your mic and the mic input on the P2, but I think those will always be less flexible and more expensive than the added mixer option for example.