You can only when you manufacture your own knife and you have a team of people assembling the different combination of custom order on-demand. Coldsteel doesn’t make their own knife so this is going to be pretty hard to execute. Not to mention I suspect different models are made by different manufacturers across within Taiwan and China.
The other challenge is the amount of SKUs this is going to create for the different color/materials of the handle and blade part. Again, very costly to maintain unless you own the manufacturing facility.
Even if you have the above, in order to make it financially feasible, you’ll need to have enough volume to have a decent margin, so you can only do it for very few very popular models. Which mean you need to have a very popular and enduring classic model, like the benchmade griptilian, bugout, Spyderco paramilitary 2, para 3 etc. Unfortunately IMO CS has not produced any “enduring classic” design in recent years, most of the new folder models are either very niche or get discontinued very quickly.
TL;DR - it’s not easy setting up a factory custom shop for folders, unless CS does vertical integration, like Benchmade, which requires a lot of capital.
You guys with your details and complications, I just wants muh knife the way I wants it.