full screen fter publishing

Hi Albert and welcome to Heroes! 

Storyline doesn't have a "full screen" option, but you can set the behavior within the Player set up as to how it will display. It will also depend on the story size you set up, but you'll want to look at the browser size:

• Display at user's current browser size: With this option, when the course launches, it'll display in a browser window at whatever size the learner's browser is currently set to.
• Resize browser to optimal size: If you choose this option, when the course launches it'll automatically resize the learner's browser to match the course's optimal size. The optimal size is whatever you've chosen as the story size, plus any additional height or width to accommodate the course player. Depending on the features and controls you've included on your player, the player can add between 20 and 260 pixels to the width of your course, and between 20 and 118 pixels to the height. If you need help understanding the features and controls available on your player, check out this tutorial. 
• Resize browser to fill screen: If you choose this option, when the course launches, it'll automatically resize the learner's browser to fill the whole screen.

And then the player size:

• Scale player to fill browser window: This causes your published course to fill the user's browser window.
• Lock player at optimal size: This locks the published course at its optimal size—and even if learners resize their browser window, the course itself will stay at the optimal size. The optimal size is whatever you've chosen as the story size, plus any additional height or width to accommodate the course player. Depending on the features and controls you've included on your player, the player can add between 20 and 260 pixels to the width of your course, and between 20 and 118 pixels to the height. If you need help understanding the features and controls available on your player, check out this tutorial.