Merging 2 XAS peaks using Crispy

I am currently learning how to theoretically simulate the XAS patterns of CeMIn5 type fermions using XAS,I need to merge the current XAS pattern obtained with another result in order to obtain a curve that is closest to experimental calculations in a publication.I am currently working using crispy ,is there any way this is possible using crispy or will i have to use another software?

I am open to using recommendations.

Thanks.