Auto Select a Value in Existing Row Form

[andresjgc]

I'm trying to auto-populate a value in a form, which could also be updated by the user. However, there are some thing to keep in mind. 

The form is updating an existing row, so I'm using LINKTOROW(). Additionally, I can't use a grouped action as there are some technicalities preventing me on doing that.

The current solution I have in place is using the Suggested Value with only a single value, which then the user needs to select. 

I would like to know if there is a way on auto selecting that single value as it is the only one available to select.