Hi Ronald,
the code is just a starting point.
To be honest i do not see a real problem.
Your need is change a picture into a cell grid accarding your rules, without any text.
In order to avoid text typing, just set the option goEditing to false.
In order to change the picture (or icon) in the cell grid, you must work with SG1.CreateBitmap only.
With this example you can change the picture when you change row or, wait the picrture changing in timer event.
And this is very close (if not is the your case solution) to what you are searching.
Better ... i modified the example and put 1 edit where you intend change the picture.
In your project, instead the edit, consider your logic in order to change the image.
https://files.fm/u/z9chzx8d
In the same way, i used bmp files .... you use your ico, jpg ecc... files
Hope you can solve the matter
Regard
Daniele