Thank you for you help my friend.
but It’s not what i’m looking for. 
Actually i have settled a qualification system.
The canvas is displayed at the start of the game, and it is updated every 0.1 seconds. When a player qualifies himself, the widget is updating too.
When the limited numbers of players teleported is reached (ThresoldToReach) i want to remove or hide the text “Total players qualified for the next round:”
Actually i don’t even know the difference between canvas and widget… I just want to use a text that can be updated in real time to give information about how many players have been qualified in real time…
I hope it is more clear at this point lmao 
EDIT : i’ve tried to add the function as you suggested but nothing happened.