Question by Chris;

I would however still like to know how I can get the following effect: run from LED 1 to Led 150, pause when the whole string is lit for x minutes and repeat this routine. Where exactly should the modification be inserted (end (bottom) of the program. beginning etc.

Chris could you post the full working code here? 
This way I can figure where to make the modifications.

So if I understand you correctly: matching the desired color pattern, light LED1, LED2,... LED150. Wait a few seconds. Blank all LEDs. Rinse and repeat?

Hi,

The code I am using at present is as below. (Please forgive me if this is not correctly formatted - I hope I am doing it right).  Basically this generates a series of strip flags which remain (static) ON..  What I would like to do is have each LED turn on in sequence (running) in this pattern.  When all LEDs are on, I would like the flags to display for "x" minutes, after which the whole sequence repeats itself.  I hope this all makes sense.  I am totally illiterate of the appropriate terminology/jargon

#include "FastLED.h"
// Number of RGB LEDs in the strand
#define NUM_LEDS 150 
// Define the array of leds
CRGB leds[NUM_LEDS];
// Arduino pin used for Data
#define PIN 6 
// Define a few colors
#define Red   0x00FF00
#define White 0xFFFFFF
#define Blue  0x0000FF
#define Green 0xFF0000
#define Black 0x000000
#define Yellow 0xFFFF00
#define Orange 0x5FF500
#define DimGray 0x050505
#define Lightblue 0xBB00AA
uint32_t flagcolors[5][30] = { 
    {  Red,   Red,   Red,   Red,    White, White, White, White, Blue,  Blue, 
       Blue,  Blue,  Black,   Red,   Red,   Red,   Red,   White, White, White, 
       White,  Green,  Green, Green,  Green,   Black,   Red,   Red,   Red, Red  },  // row 1
    {  Yellow, Yellow, Yellow, Yellow, DimGray, DimGray, DimGray, DimGray, Black, Yellow, 
       Yellow, Yellow, Yellow, Red, Red, Red, Red, Yellow, Yellow, Yellow, 
       Yellow, Black, Blue,  Blue,  Blue,  Blue, White, White, White, White  },  // row 2
    {  Red,   Red,   Red,   Red,  Black, Lightblue, Lightblue, Lightblue, Lightblue, White, 
       White, White, White, Lightblue, Lightblue, Lightblue, Lightblue, Black, Red,Red, 
       Red, Red, White, White, White, White, Lightblue, Lightblue, Lightblue, Lightblue }, // row 3
    {  Black,  Red, Red, Red, Red,  White, White, White, White, 
      Red, Red, Red, Red,  Black,  Lightblue, Lightblue, Lightblue, Lightblue, Yellow, 
      Yellow, Yellow, Yellow,  Lightblue, Lightblue, Lightblue, Lightblue, Black, Red, Red },   // row 4
    {  Red, Red, White, White, White, White, Blue, Blue, Blue, Blue, 
       Black, Orange,  Orange,  Orange, Orange, White, White, White, White,  Green,
       Green,  Green,  Green, Red, White, Blue, Orange, Lightblue, Green, Yellow }   // row 5
  };
void setup()
{
  FastLED.addLeds<NEOPIXEL, PIN, RGB>(leds, NUM_LEDS);  
  // For setting the flag one time
  for(int row = 0; row < 5; row++) {
    for(int col = 0; col < 30; col++) {
      leds[ (row*30)+col ] = flagcolors[row][col];
    }
  }  
  FastLED.show();
}
void loop() {
  // put your main code here, to run repeatedly:
}

Hi Chris,

yep you did it right ...

As for the idea, yes explaining the idea can be challenging, for me as well ... 

As for you code - I'd change it to something like this (play with the delays - this is just the setup() and loop() part, the rest remains the same):  

void setup()
{
  FastLED.addLeds<NEOPIXEL, PIN, RGB>(leds, NUM_LEDS);  
}
void loop() // this keeps repeating: draw flag colors, wait, wipe strip to black,...
{
  // For setting the flag one time
  for(int row = 0; row < 5; row++) {
    for(int col = 0; col < 30; col++) {
      leds[ (row*30)+col ] = flagcolors[row][col];
      delay(100);     // 0.1 second slow down
      FastLED.show(); // Light up one at a time 
    }
  delay(5000);   // 5 seconds

  // All LEDs OF
  for(int i = NUM_LEDS-1 ; i >= 0; i-- ) {
    led = 0;
    FastLED.show();
    delay(1);    // You can remove this (instant black, or increase the delay)
  }  
}