Using an attribute from a different sheet for an attack

Hi team,  I'm using the 5e Sheet by Roll20 and was wondering if there is a way to create an attack on one sheet that uses the spell modifier attribute from another character sheet? Any help would be greatly appreciated!

The dirty secret of information accessibility is that everything is available... if you know how to ask for it. If you can control the character: @{Hendrick Wearer of Bodysuits|attr_mod} If you can select the token: @{selected|attr_mod} ...or if you want to know something about someone you shouldn't... @{target|that_thing_you_are_not_supposed_to_know} Calling it from another sheet, there is no shortcut similar to the way you can call something from the same sheet. You have to supply the fully-qualified reference.