Best way to allow user to request dropdown in an autotext template request?

I work at a hospital, where we are trying to standardize user requests for autotext content. The autotext can support inline dropdowns with "alternate" text choices.

Simple example: User wants the default text to be: "Pulses: normal". However, they want "normal" to be a dropdown that also contains the choices "slow" and "fast".

The current (awful!) method is for the user to fill out an Excel sheet with columns for system, subsystem, default, choice 1, choice 2, choice 3, etc. We'd like to replace this with an easy-to-use web form that looks more like what they'd write in their clinical notes. However, I'm not sure how to allow users to designate which words should contain dropdowns and what the dropdown entries should contain.

It would probably be easiest (to implement) with a simple text method (e.g. "Pulses: [normal|slow|fast]"), this isn't very friendly for non-technical users.

Thoughts?