Run a Shortcut from a Template
Shortcuts can be opened through an URL: "shortcuts://run-shortcut?name="
And templates allow you to open URLs through the API:
<% NotePlan.openURL("shortcuts://run-shortcut?name=Hello%20World") -%><br>
You can copy this line into your template text and modify the value behind name= to open your specific Shortcut. Note: You need to convert spaces to %20 and other special character, you can use tools like this one.