Is there a matrix somewhere that shows what product changes are allowed for a given card?

I had an agent tell me that the Citi TYP Premier card ($75) annual fee cannot Product Change to anything. I know I could just blindly HUACA and see if I get different answers, but if this is actually written down somewhere, I'd like to have that info in advance.

It's a line of credit that's been open for 10 years, so I'm hesitant to cancel it. Also don't have any Citi cards I want bad enough to use a hard pull for. I was thinking I'd flip this card over to the Costco card and actually use it a bit. If I can't product-change to a Visa, then just to some no-fee Mastercard to toss in a drawer.

I have good credit and already hold the Prestige card and the Hilton card. When Hilton/Citi dies, maybe that one becomes my Costco card. But it's a relatively new line of credit that I don't mind cancelling if I have to.