Change state of object on Slide Master

Okay. So here's what worked for me. 5 out of 6 menu items on my menu involve videos. So initially i created numeric variables valued at '0'. 

Menu layer is located on my slidemaster. And states do not carry over slide by slide as previously stated by other users in this post,

On the slidemaster layer of the menu I created a trigger

Change Object Menu 1 to custom state 'checkmark' when the variable Menu_Item_1 changes.  I did this for each menu item on the master slide layer 'MENU'

I created numeric variables Menu_Item_1 = 0 (initial), Menu_Item_2 = 0, etc....

After the learner views the video for the menu item 1 I created a trigger on that slide that states: ADDS 1 to the Menu_Item_1 variable after the media completes. 

On each slide after that i created a trigger that ADDS 1 to variable when the timeline starts. 

• Slide 3 has trigger Add '1' to Menu_Item_1
• Slide 4 has trigger Add '1' to Menu_Item_1 and Add '1' to Menu_Item_2. 

This allows the checkmarks to display across all slides since adding to the variable when timelines start "changes" the variable thus meeting the conditions of the trigger i placed on the master slide layer "MENU". 

I also created clickable links to go back to those portions but if the variable is not > or = to 1 they cannot jump ahead. instead i used another layer and used the "else" feature to pop up and tells the learner they must view all sections before moving on.