Reassign shortcut with variable in it
Here is how I used the control + command + c keys in Keyboard Maestro. It's a paid app with a free trial period. Frankly, I didn't have much luck defining apple's keyboard short cuts. It was all confusing to me.
Start up Keyboard Maestro https://www.keyboardmaestro.com/main/
Keyboard Maestro does come with an assist to help you create your first action. It's a little confusing at first to figure out what button to click when. They do have a forum.
click on the plus icon to create a new action
pick what key you want to be the hotkey. ( not shown )
add a new action. request to see the list of actions
create new action.
Pick your action.
Resulting page.