Possible to create PWM phase delay

Hi, guys. I'm using the PCA10056 and the SDK 15.3's BLE UART peripheral example. I'm working on a PWM controller using the mobile app.

I need to create a delayed PWM signal, just like the above picture. A pair (PWM 0, PWM 1 for instance) has the same frequency and duty cycle.

Is this possible to implement this without the NRF_DELAY function? I was curious whether the PWM modules can use other PWM modules as a trigger source

(PWM 0 triggers PWM 1 for instance) so that I can decrease the software codes.

If so, how should I modify the PWM code?

Lastly, how many PWM pairs are available?

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