I would like to be able to add a colour picker with pre-selected colour choices on the designer page to change all layer colours at the same time, is that possible? See picture attached, the color selector above the " add to cart " button would allow to change the color of all layers in the same time.
yes, you can do that either by using a svg and combine all paths or by replacing the product image depending on the selected color (for example using designs or multistep product configurator).
Thanks for your answer. Not sure if I was clear with my first question though. What I meant is, is there a way to have the colour selector like in the image attached to my first message? In other words, I would like to be able to select the colours in a different way than in the layers options...
Could that be achieved with the "color selection panel" add-on?
yes, you can use the plus Add On for that.