Esp32 fastled

Hi there I am new to this forum and this is my first post.
I am using an ESP32 huzzah with Fastled parallel outputs. (code from Sam Guyer)I. have successfully build the code and can run seven WS2811 led strips with 170 leds per strip. I am trying to make a flexible controller that has a mix of clocked and un clocked led strips .Is it possible for all led strips to share the same SCK pin. Also Sams article states if can drive 8 output pins 13,12,27,33,15,32,14,SCK.
The code fails to run if I include initialisation of SCK as an output pin. Any advice would be greatly appreciated.