How do I use Local Storage with multiple values?

I've been trying to wrap my head around the Local Storage object, but many of the tutorials only show how to save and retrieve a single value. But the asynchronous nature of this feature is the main thing throwing me for a loop -- at first I thought I had to request and retrieve values in sequence. Fortunately, last night I think it finally "clicked".

This works, right? (I also need to check if the items exist and create them if they are missing, but I know how to do that.)

[START GROUP]

On start of layout:

get item "player" get item "score" get item "sound"

Set group "START GROUP" Deactivated

[OPTIONS GROUP]

On item "player" get

System -> Set item global_player to localstorage.itemvalue

On item "score" get

System -> Set item global_score to localstorage.itemvalue

On item "sound" get

System -> Set item global_sound to localstorage.itemvalue

I think I can even deactivate OPTIONS GROUP using "On All Gets Complete" right?

I think it would be easier, ff you store all of your values in an array and load or save the array with local storage, instead of all single variables.

The LocalStorage documentation has a whole section suggesting using a Dictionary to deal with this.