ws2811 pixel led

Hi every one, I am the new to Pixel LED I have come to ask some advice on a project I am Busy with
I have got the project built and working with code i downloaded but there a chases i would like to program with 2 buttons one for next chase and other button to go back to previous chase.
I have a link with video of the patterns i am trying to program , youtube link below
If anybody could please help me , my email address is


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