Questions about the variables in escape room using 360 image (solved!!)

Hi E-learning heroes! I recently run into a question in setting varibles in 360 image.

Here is what I want to make:

When the players navigate the kitchen and find the salt bottle, it will be crossed as follows:

My initial solution is setting layers of items and set up the following variables：

However, when the players get another item (flour), the salt bottle cannot remain crossed,  like this:

Can somebody give me some advice about how to make the found items remain crossed? Thank you very much!

Now I solved this problem: I put the texts in the base layer and it worked!!

I got lots of ideas from this post: 

https://community.articulate.com/discussions/articulate-storyline/using-variables-with-layers