Highlight corresponding open and close tags when selected
Similar to how code editors will highlight a closing bracket when an open bracket is selected (and vise-versa) to easily determine what is contained in the brackets and identify the scope of everything, I think it would be useful if the same idea was introduced with tags. For instance if a user selects and open foreach tag, then the corresponding closing foreach tag would also be highlighted.
This would make it a lot easier with massive templates and a bunch of loop and if-conditional nesting to find what belongs to what loop or conditional. This way if a conditional block or loop block needs to be removed, there's no guessing what the closing tag is and would minimize the issue of removing parts of the template and corrupting the tag stack.