Do you remember WordPerfect in the early nineties? You edited documents in a text editor that showed commands like [Center] in clear text. Today, no one would dream of using a word processer without WYSIWYG - what you see is what you get.
This trend is now coming widely to CPQ. You have probably seen it already in tailormade configurators for consumer products like cars, furniture, or villas. The same trend now comes to B2B markets. Customers expect to see what they will get as they pick among the product’s options.