SightMap's query string API allows you to target a specific unit:
You will need to provide and store your own set of unit data (e.g., unit numbers) in order to query specific units on the map with the Query String API.
Create a View on Map button at the unit level that zooms to and highlights the the specific unit on a SightMap.
Query the unit via SightMap® Query String API.
The SightMap can be embedded in-line (e.g., at the bottom of the floor plans page) or open in an overlaid iFrame.