Overview
Turn this:

into This:

With a keystroke.
Description
The VI will add a QuickDrop-shortcut to your LabVIEW and will enable you to select an area on the Blockdiagram, press Ctrl+Space - Ctrl+M to surround it with a benchmarking-structure.
It will also enable you to add benchmarking to selected loops like this:

Ctlr+Space - Ctrl+Shift+M

The VI is created using VI scripting, but scripting must not be enabled to use the VI as a Shortcut.
Once you copied the VI to the QD-plugins-folder ([LabVIEW]\resource\dialog\QuickDrop\plugins) you can run it via Ctrl+M (benchmark selected area), or via Ctrl+Shift+M (benchmark loop).
Both shortcuts of course work with more complex code than shown above.
The VI is full of comments and ready to be edited. It is also a good example for using scripting to create and wire Blockdiagram objects.
Steps to Implement or Execute Code
Requirements
LabVIEW 2014 or later
Example code from the Example Code Exchange in the NI Community is licensed with the MIT license.