I have a several sensors outputting frequencies that I want to monitor. Is it possible to modify freqcount to measure the frequency of 4 of these sensors? I understand that the counter input pin is 9 on Teensy 4, but could the other timer/counters be utilized as well or can the measurement also be coupled to other pins somehow? The frequencies are in the MHz range so a counter that operates similarly to freqcount is required for accuracy. Any guidance on this would greatly be appreciated. Right now I'm using a MUX to switch between sensors, but I'd rather try to get rid of it.