move back and forward only for the viewed slides

I don't think you need the variable. Open the Player Properties and select the Menu Tab. At the bottom of that screen is a gear. Select the gear and the Menu Options pop-up will appear. In the Navigation Restriction Dropdown select "Restricted"

Thanks for your help

I tried to enable the Restricted option, but locks also the back and next buttons of the player.

Hi Pino

you do want to use the default SL player or not?  If using a restricted menu, the next button won't become clickable until after the timeline ends.

I want to use the default SL player, but if I set a restricted menu

(tab HOME->Player->Menu->Additional options->Navigation Restriction = Restricted)

the next buttons is clickable but it still does not work after the timeline ends

I attach a test with restricted menu.

What am I doing wrong?

PS:

but if I want to create my buttons back and next to realize the logic described in the first post, I have to make use of the variables?

Thanks for your help

Hi Pino

you have your slide properties set to advance automatically. Change this to by user and then remove the triggers on each slide that say jump to next slide when timeline ends and just leave the trigger jump to next slide when user clicks the next button

But if I want to advance the slides also automatically?

My target is to automatically advance the slide but the user can move back and forward only for the viewed slide

it's possible with the default player?

Hi PIno

see if this works how you want. 

It is set up in the slide properties to advance by user.  There is a trigger on each slide to jump to next slide when timeline ends.  The player is set to 'restricted' so they can't use the next to jump ahead but they can use previous to view slides that have already been visited.

Hi Wendy,

In your sample project I can move only back to the slide views.
If I go back, I should also can go forward to the slides viewed

Thank you very much for your assistance, I am grateful to you

Hi Pino

In my example you can go back and forward on the menu if you have previously visited a slide.  I don't think I understand what you mean if that is not the behaviour you are after.

See the attached video

Hello, My organization prefers to lock the forward screen option, because they do not want users skipping content. However, I would like the option to go back only. Is that possible? 

Hi Ana,

Look at enabling Restricted navigation in your courses. That will allow a user to go back to slides they've already seen but not jump ahead of the next slide in line. 

Thank you!