We are a small organisation on the Figma team plan. We have two design libraries at present that serve different device types that need to be merged into one. I’ll give an example to help.

Example:
In two separate design systems I have a button, one design system houses the button for iOS devices and one design system houses the buttons for Web. I want to combine my design systems and have one single button style that applies to both iOS and Web. 

Is there a way to do this without needing to replace all of the instances of the button component in one set of my files? There are thousands of instances at this point and it would take me a silly amount of time to do it manually.

(Also a note in case it’s relevant - none of my components currently use variables)