Edit a Timer to Show an Element on the Page

Hi, 
I'm currently trying to create a show and hide interactive, but I want to make it, so on load it's hidden, but then once you click a button it shows, and stays visibile forever. Currently when I use the show/hide actions, then I navigate back to the page, the element hides again. 
To get around this I've been using variables, set to true, and then the element shows when the variable is true. This seems to hold even when going back to the page, but it's a ime consuming process. Having to ...

Create unique and engaging learner experiences by showing content in a modal window over your main page

How do you trigger a show action for an icon that is on one page, but the trigger action is the completion of another page? 

I selected the page > clicked Trigger > When this page is completed > Show Action > then the only items I can select are on the same page that I am using as a trigger. I can't figure out where to select an image on another page to show on completion. The search only returns items on the same page, too.

Do I have to create a custom variable or am I missing ...

You can display the value of variables in any text element

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When designing content, you may change your mind. What happens when you have a two column layout but you want a three our four column design instead?

Edit a collection when you want to modify the title, description, permission of the collection or to reorder the projects within the collection. Follow the instructions below to learn more.

Scenario:

We're using a single in-line text input field with an associated variable (per screen) instead of the standard Short Essay question template (we have reasons for not being able to use the template, mostly to do with being unable to disable the default template pop-ups)
We want to have feedback displayed when a custom Submit button is clicked and we want that feedback to stay visible even after they navigate away and back to the screen. This is so they don't have to click on the S...

General Timer Control Options