I have some BOSS pedals that require a PSA-type AC adaptor, and other BOSS pedals that require an ACA-type AC adaptor. Will the BCB-60’s power supply provide power to both types of pedals simultaneously?

Can I install a BOSS Twin Pedal or wah pedal on the BCB-60 pedal board?

I’ve attempted to cut the blank holding pad included with the BCB-60 in order to install another pedal, but I made a mistake and cut it to the wrong size. Can I buy a replacement holding pad separately?