1. Select the text you want to change in one you code that there is duplicates of.

2. Press Ctrl+D (Windows/Linux) or Cmd+D (Mac) to add the next section of code selected text to your selection.

3. Repeat Ctrl+D (Windows/Linux) or Cmd+D (Mac) to add more section of code.

4. Once you've selected all sections of code you want to change, simply start typing to replace the selected text with your desired new text.

Go to File > Preferences > Settings and search "Startup Editor" Then choose "None" from the drop-down menu.

On Windows Shift + Alt + F
On Mac Shift + Option + F
On Ubuntu Ctrl + Shift + I