Intermec CK3X Handheld Scanner

I’ve never joined a forum before so I hope my question gets answered and that I chose the correct category. I have an Intermec CK3X gun and I need to be able to map the SIP to a hard key. I was wanting to map the SIP to the FldEx key. I’ve googled this to death and cannot find an answer anywhere. Hopefully someone out there can help me.

I called Intermec support and they said it’s not possible, but I believe there has to be a way.