how can I make menu to change post effects

as far as i know, you'll want to instead toggle the post effects so that when the screen is tapped, it will switch. i think the menu you show there is only for face image picker as far as lens studio goes :)

Hi,

You can code a script that hides/disable the menu when it detects user is recording or took a picture.

Heres a comment by Travis that will become useful.

https://support.lensstudio.snapchat.com/hc/en-us/community/posts/360018308623/comments/360000804183

https://support.lensstudio.snapchat.com/hc/en-us/community/posts/360000674763/comments/360000130346

function onUpdateEvent( eventData )

{

   if( global.scene.isRecording() == true )

   {

       // Recording is started

   }

}

var updateEvent = script.createEvent( "UpdateEvent" );

updateEvent.bind( onUpdateEvent );

And if you want a non scripting way to hide screen elements from recording, create a new render target and in scene config use Live Target. Whatever you send to Live Target won't be in the final video or picture. 

Here's a quick video of how to use Live Target to use screen elements that you don't want in your recording. With the newly created render target used for Live Target, you feed the default render target (unless you have a crazy setup with multiple render targets, then this would be the one your sending to the output) in the input of your new render target used for the screen elements you dont want in the recording. Hope that makes sense.

https://www.youtube.com/watch?v=6Fov-j2nqSw&feature=youtu.be