sending neopixel signals from remot control to other pins

i wanna send neopixel cods to an input pin in ardunio and when i tuch the trigger pin send the cods to two pins that are out puts to the ws2812 LEDs
its for car light and i wanna add more modes on it
pleas help me

What have you done so far ?

Can you control the Neopixels to produce the patterns that you want when they are hard coded in the Arduino code ?
What type of remote do you have ?
Can you receive and interpret the signals received from the remote ?
Do you want to send arbitrary new patterns to the Neopixels or to select between patterns already defined in the code ?