How to highlight selected variables in Sublime Text 3?

Question

Sublime Text

When you select a string in Sublime, it automatically highlights all matching string values ​​in the code. I really want it to also highlight variables if I select a variable, or in principle always highlight matches. I can't find which parameter is responsible for this, and I'm not sure exactly what this behavior should be called. Or maybe you need a plugin? Thanks in advance for your replies!

Answer 1

For such purposes, I select what is needed and press Ctrl + F and all found matches are highlighted. Not quite what was asked, but may be useful
Solution:
https://github.com/SublimeText/WordHighlight