If you want to show certain sections to a limited number of people, you can use the passcode option. Following are the steps to use this Passcode feature.
Drag the Text block and name it Passcode or Password whatever you want.
Put the condition on the section which you want to show to certain people that it will appear only if a particular expression (passcode) is entered in the Passcode column, And use any passcode of your choice as shown below.
Now, if someone enters the wrong passcode then the section will not appear and it will be hidden as shown.
Now, if someone enters the correct passcode (here it is Clap@123) then the section will appear.