My apologies if this has been asked before, but I could not find anything in the gazillion "custom quit GUI" topics I found via searching 
I just set up a custom Quit GUI, and I noticed that while setting the GUI to popup modal stops the game, it still allows me to access other popup modal GUIs (main menu on mouse to top, inventory on mouse to bottom), and my Lucas-ish text bar ("walk to boat", "use rubber lips on yak" etc) also still gets updated while the Quit GUI is visible. The standard Quit GUI, on the other hand, blocks all other GUIs...is there a way to achieve that effect without having to manually check each time I activate a GUI which other GUIs are visible?

I just set up a custom Quit GUI, and I noticed that while setting the GUI to popup modal stops the game, it still allows me to access other popup modal GUIs (main menu on mouse to top, inventory on mouse to bottom), and my Lucas-ish text bar ("walk to boat", "use rubber lips on yak" etc) also still gets updated while the Quit GUI is visible. The standard Quit GUI, on the other hand, blocks all other GUIs...is there a way to achieve that effect without having to manually check each time I activate a GUI which other GUIs are visible?